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Full vulnerability report · 2025
CVE-2025-37957High confidence

KVM: SVM: Forcibly leave SMM mode on SHUTDOWN interception

Linux · Linux

8.8HighCVSS 3.1
Recommended action
Patch only the product branches with a verified fix

High technical severity; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 22 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:Medium, lowered one band.downgradedsince 5 Aug 2026

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • Exploitation requires an existing local or physical foothold with privileges.
  • EPSS is 0.18% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict local access and enforce least privilege on affected hosts.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Linux Linux and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: As exposure requiresRemediation target: Within 365 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Cross-source reconciliation

Remediation availability differs by product scope

Verified remediation exists for at least one product or source, but 22 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Distribution package intelligence

Release-specific package status

Debian, ubuntu findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.

25 package states
Package result overrides the generic status

BlackTree has verified remediation for at least one product or source, but the relevant distribution still reports no fixed package for 22 affected package states shown here. Treat those rows as affected with no fix until that distribution publishes a fixed version.

Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Distribution releaseSource packageVendor stateFixed versionEvidence
Debian trixietrixie · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.12.29-1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian bookwormbookworm · sourcelinuxAffected, no fix publishedDebian currently tracks this release as open.Not published in this feedDebian Security Tracker ↗Source updated 6 Oct 2026
Debian forkyforky · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.12.29-1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian sidsid · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.12.29-1Debian Security Tracker ↗Source updated 6 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinuxAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-awsAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-azureAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-azure-fdeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-azure-nvidiaAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-gcpAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-gkeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-gkeopAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-ibmAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-intelAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-lowlatencyAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-nvidiaAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-nvidia-lowlatencyAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-nvidia-tegraAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-oem-6.11Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-oracleAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-raspiAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-raspi-realtimeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-realtimeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-riscvAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-xilinxAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
CVE-2025-37957 · CSAF 2.0 · revision 42 · interimSUSE Product Security TeamCVE-2025-37957
201 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • kernel-default as component of SUSE Linux Enterprise Desktop 15 SP6
  • kernel-default-extra as component of SUSE Linux Enterprise Desktop 15 SP6
  • kernel-source as component of SUSE Linux Enterprise Desktop 15 SP6
  • kernel-default as component of SUSE Linux Enterprise Desktop 15 SP7
  • kernel-default-extra as component of SUSE Linux Enterprise Desktop 15 SP7
  • kernel-source as component of SUSE Linux Enterprise Desktop 15 SP7
  • cluster-md-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
  • dlm-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
  • gfs2-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
  • kernel-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
  • kernel-source as component of SUSE Linux Enterprise High Availability Extension 15 SP7
  • ocfs2-kmp-default as component of SUSE Linux Enterprise High Availability Extension 15 SP7
Summary
In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Forcibly leave SMM mode on SHUTDOWN interception Previously, commit ed129ec9057f ("KVM: x86: forcibly leave nested mode on vCPU reset") addressed an issue where a triple fault occurring in nested mode could lead to use-after-free scenarios. However, the commit did not handle the analogous situation for System Management Mode (SMM). This omission results in triggering a WARN when KVM forces a vCPU INIT after SHUTDOWN interception while the vCPU is in SMM. This situation was reprodused using Syzkaller by: 1) Creating a KVM VM and vCPU 2) Sending a KVM_SMI ioctl to explicitly enter SMM 3) Executing invalid instructions causing consecutive exceptions and eventually a triple fault The issue manifests as follows: WARNING: CPU: 0 PID: 25506 at arch/x86/kvm/x86.c:12112 kvm_vcpu_reset+0x1d2/0x1530 arch/x86/kvm/x86.c:12112 Modules linked in: CPU: 0 PID: 25506 Comm: syz-executor.0 Not tainted 6.1.130-syzkaller-00157-g164fe5dde9b6 #0 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:kvm_vcpu_reset+0x1d2/0x1530 arch/x86/kvm/x86.c:12112 Call Trace: shutdown_interception+0x66/0xb0 arch/x86/kvm/svm/svm.c:2136 svm_invoke_exit_handler+0x110/0x530 arch/x86/kvm/svm/svm.c:3395 svm_handle_exit+0x424/0x920 arch/x86/kvm/svm/svm.c:3457 vcpu_enter_guest arch/x86/kvm/x86.c:10959 [inline] vcpu_run+0x2c43/0x5a90 arch/x86/kvm/x86.c:11062 kvm_arch_vcpu_ioctl_run+0x50f/0x1cf0 arch/x86/kvm/x86.c:11283 kvm_vcpu_ioctl+0x570/0xf00 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4122 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0x19a/0x210 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x35/0x80 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 Architecturally, INIT is blocked when the CPU is in SMM, hence KVM's WARN() in kvm_vcpu_reset() to guard against KVM bugs, e.g. to detect improper emulation of INIT. SHUTDOWN on SVM is a weird edge case where KVM needs to do _something_ sane with the VMCB, since it's technically undefined, and INIT is the least awful choice given KVM's ABI. So, double down on stuffing INIT on SHUTDOWN, and force the vCPU out of SMM to avoid any weirdness (and the WARN). Found by Linux Verification Center (linuxtesting.org) with Syzkaller. [sean: massage changelog, make it clear this isn't architectural behavior]
Remediation
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2025-15905

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionPatch only the product branches with a verified fix

High technical severity; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 22 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
01

What, why and how

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Forcibly leave SMM mode on SHUTDOWN interception Previously, commit ed129ec9057f ("KVM: x86: forcibly leave nested mode on vCPU reset") addressed an issue where a triple fault occurring in nested mode could lead to use-after-free scenarios. However, the commit did not handle the analogous situation for System Management Mode (SMM). This omission results in triggering a WARN when KVM forces a vCPU INIT after SHUTDOWN interception while the vCPU is in SMM. This situation was reprodused using Syzkaller by: 1) Creating a KVM VM and vCPU 2) Sending a KVM_SMI ioctl to explicitly enter SMM 3) Executing invalid instructions causing consecutive exceptions and eventually a triple fault The issue manifests as follows: WARNING: CPU: 0 PID: 25506 at arch/x86/kvm/x86.c:12112 kvm_vcpu_reset+0x1d2/0x1530 arch/x86/kvm/x86.c:12112 Modules linked in: CPU: 0 PID: 25506 Comm: syz-executor.0 Not tainted 6.1.130-syzkaller-00157-g164fe5dde9b6 #0 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:kvm_vcpu_reset+0x1d2/0x1530 arch/x86/kvm/x86.c:12112 Call Trace: <TASK> shutdown_interception+0x66/0xb0 arch/x86/kvm/svm/svm.c:2136 svm_invoke_exit_handler+0x110/0x530 arch/x86/kvm/svm/svm.c:3395 svm_handle_exit+0x424/0x920 arch/x86/kvm/svm/svm.c:3457 vcpu_enter_guest arch/x86/kvm/x86.c:10959 [inline] vcpu_run+0x2c43/0x5a90 arch/x86/kvm/x86.c:11062 kvm_arch_vcpu_ioctl_run+0x50f/0x1cf0 arch/x86/kvm/x86.c:11283 kvm_vcpu_ioctl+0x570/0xf00 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4122 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0x19a/0x210 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x35/0x80 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 Architecturally, INIT is blocked when the CPU is in SMM, hence KVM's WARN() in kvm_vcpu_reset() to guard against KVM bugs, e.g. to detect improper emulation of INIT. SHUTDOWN on SVM is a weird edge case where KVM needs to do _something_ sane with the VMCB, since it's technically undefined, and INIT is the least awful choice given KVM's ABI. So, double down on stuffing INIT on SHUTDOWN, and force the vCPU out of SMM to avoid any weirdness (and the WARN). Found by Linux Verification Center (linuxtesting.org) with Syzkaller. [sean: massage changelog, make it clear this isn't architectural behavior]

What

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Forcibly leave SMM mode on SHUTDOWN interception Previously, commit ed129ec9057f ("KVM: x86: forcibly leave nested mode on vCPU reset") addressed an issue where a triple fault occurring in nested mode could lead to use-after-free scenarios. However, the commit did not handle the analogous situation for System Management Mode (SMM). This omission results in triggering a WARN when KVM forces a vCPU INIT after SHUTDOWN interception while the vCPU is in SMM. This situation was reprodused using Syzkaller by: 1) Creating a KVM VM and vCPU 2) Sending a KVM_SMI ioctl to explicitly enter SMM 3) Executing invalid instructions causing consecutive exceptions and eventually a triple fault The issue manifests as follows: WARNING: CPU: 0 PID: 25506 at arch/x86/kvm/x86.c:12112 kvm_vcpu_reset+0x1d2/0x1530 arch/x86/kvm/x86.c:12112 Modules linked in: CPU: 0 PID: 25506 Comm: syz-executor.0 Not tainted 6.1.130-syzkaller-00157-g164fe5dde9b6 #0 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:kvm_vcpu_reset+0x1d2/0x1530 arch/x86/kvm/x86.c:12112 Call Trace: <TASK> shutdown_interception+0x66/0xb0 arch/x86/kvm/svm/svm.c:2136 svm_invoke_exit_handler+0x110/0x530 arch/x86/kvm/svm/svm.c:3395 svm_handle_exit+0x424/0x920 arch/x86/kvm/svm/svm.c:3457 vcpu_enter_guest arch/x86/kvm/x86.c:10959 [inline] vcpu_run+0x2c43/0x5a90 arch/x86/kvm/x86.c:11062 kvm_arch_vcpu_ioctl_run+0x50f/0x1cf0 arch/x86/kvm/x86.c:11283 kvm_vcpu_ioctl+0x570/0xf00 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4122 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0x19a/0x210 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x35/0x80 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 Architecturally, INIT is blocked when the CPU is in SMM, hence KVM's WARN() in kvm_vcpu_reset() to guard against KVM bugs, e.g. to detect improper emulation of INIT. SHUTDOWN on SVM is a weird edge case where KVM needs to do _something_ sane with the VMCB, since it's technically undefined, and INIT is the least awful choice given KVM's ABI. So, double down on stuffing INIT on SHUTDOWN, and force the vCPU out of SMM to avoid any weirdness (and the WARN). Found by Linux Verification Center (linuxtesting.org) with Syzkaller. [sean: massage changelog, make it clear this isn't architectural behavior]

Why

The program can continue using memory after it has been released, producing unsafe and attacker-influenceable behaviour.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Forcibly leave SMM mode on SHUTDOWN interception Previously, commit ed129ec9057f ("KVM: x86: forcibly leave nested mode on vCPU reset") addressed an issue where a triple fault occurring in nested mode could lead to use-after-free scenarios. However, the commit did not handle the analogous situation for System Management Mode (SMM). This omission results in triggering a WARN when KVM forces a vCPU INIT after SHUTDOWN interception while the vCPU is in SMM. This situation was reprodused using Syzkaller by: 1) Creating a KVM VM and vCPU 2) Sending a KVM_SMI ioctl to explicitly enter SMM 3) Executing invalid instructions causing consecutive exceptions and eventually a triple fault The issue manifests as follows: WARNING: CPU: 0 PID: 25506 at arch/x86/kvm/x86.c:12112 kvm_vcpu_reset+0x1d2/0x1530 arch/x86/kvm/x86.c:12112 Modules linked in: CPU: 0 PID: 25506 Comm: syz-executor.0 Not tainted 6.1.130-syzkaller-00157-g164fe5dde9b6 #0 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:kvm_vcpu_reset+0x1d2/0x1530 arch/x86/kvm/x86.c:12112 Call Trace: <TASK> shutdown_interception+0x66/0xb0 arch/x86/kvm/svm/svm.c:2136 svm_invoke_exit_handler+0x110/0x530 arch/x86/kvm/svm/svm.c:3395 svm_handle_exit+0x424/0x920 arch/x86/kvm/svm/svm.c:3457 vcpu_enter_guest arch/x86/kvm/x86.c:10959 [inline] vcpu_run+0x2c43/0x5a90 arch/x86/kvm/x86.c:11062 kvm_arch_vcpu_ioctl_run+0x50f/0x1cf0 arch/x86/kvm/x86.c:11283 kvm_vcpu_ioctl+0x570/0xf00 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4122 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0x19a/0x210 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x35/0x80 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 Architecturally, INIT is blocked when the CPU is in SMM, hence KVM's WARN() in kvm_vcpu_reset() to guard against KVM bugs, e.g. to detect improper emulation of INIT. SHUTDOWN on SVM is a weird edge case where KVM needs to do _something_ sane with the VMCB, since it's technically undefined, and INIT is the least awful choice given KVM's ABI. So, double down on stuffing INIT on SHUTDOWN, and force the vCPU out of SMM to avoid any weirdness (and the WARN). Found by Linux Verification Center (linuxtesting.org) with Syzkaller. [sean: massage changelog, make it clear this isn't architectural behavior]

Why

The program can continue using memory after it has been released, producing unsafe and attacker-influenceable behaviour.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
local access → Use After Free → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Local
Privileges required
Low: a basic authenticated account is required
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Changed: exploitation can affect a different security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-416 ↗

CWE-416: Use After Free. The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory belongs to the code that operates on the new pointer.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SChangedScope: The attack can affect a component governed by a different security authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.
CWE-416
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-2025-1114Linux Kernel: Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Linux Kernel ausnutzen, um einen Denial of Service Angriff und weitere nicht spezifizierte Angriffe durchzuführen.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0326Multiples vulnérabilités dans les produits VMware

d?id=CVE-2025-37938 Référence CVE CVE-2025-37943 https://www.cve.org/CVERecord?id=CVE-2025-37943 Référence CVE CVE-2025-37944 https://www.cve.org/CVERecord?id=CVE-2025-37944 Référence CVE CVE-2025-37945 https://www.cve.org/CVERecord?id=CVE-2025-37945 Référence CVE CVE-2025-37947 https://www.cve.org/CVERecord?id=CVE-2025-37947 Référence CVE CVE-2025-37951 https://www.cve.org/CVERecord?id=CVE-2025-37951 Référence CVE CVE-2025-37952 https://www.cve.org/CVERecord?id=CVE-2025-37952 Référence CVE CVE-2025-37954 https://www.cve.org/CVERecord?id=CVE-2025-37954 Référence CVE CVE-2025-37956 https://www.cve.org/CVERecord?id=CVE-2025-37956 Référence CVE CVE-2025-37957 https://www.cve.org/CVERecord?id=CVE-2025-37957 Référence CVE CVE-2025-37959 https://www.cve.org/CVERecord?id=CVE-2025-37959 Référence CVE CVE-2025-37961 https://www.cve.org/CVERecord?id=CVE-2025-37961 Référence CVE CVE-2025-37980 https://www.cve.org/CVERecord?id=CVE-2025-37980 Référence CVE CVE-2025-37984 https://www.cve.org/CVERecord?id=CVE-2025-37984 Référence CVE CVE-2025-38006 https://www.cve.org/CVERecord?id=CVE-2025-38006 Référence CVE CVE-2025-38011 https://www.cve.org/CVERecord?id=CVE-2025-38011 Référence CVE CVE-2025-38014 https://www.cve.org/CVERecord?id=CVE-2025-38014 Référence CVE CVE-2025-38015 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0316Multiples vulnérabilités dans les produits VMware

d?id=CVE-2025-37938 Référence CVE CVE-2025-37943 https://www.cve.org/CVERecord?id=CVE-2025-37943 Référence CVE CVE-2025-37944 https://www.cve.org/CVERecord?id=CVE-2025-37944 Référence CVE CVE-2025-37945 https://www.cve.org/CVERecord?id=CVE-2025-37945 Référence CVE CVE-2025-37947 https://www.cve.org/CVERecord?id=CVE-2025-37947 Référence CVE CVE-2025-37951 https://www.cve.org/CVERecord?id=CVE-2025-37951 Référence CVE CVE-2025-37952 https://www.cve.org/CVERecord?id=CVE-2025-37952 Référence CVE CVE-2025-37954 https://www.cve.org/CVERecord?id=CVE-2025-37954 Référence CVE CVE-2025-37956 https://www.cve.org/CVERecord?id=CVE-2025-37956 Référence CVE CVE-2025-37957 https://www.cve.org/CVERecord?id=CVE-2025-37957 Référence CVE CVE-2025-37959 https://www.cve.org/CVERecord?id=CVE-2025-37959 Référence CVE CVE-2025-37961 https://www.cve.org/CVERecord?id=CVE-2025-37961 Référence CVE CVE-2025-37980 https://www.cve.org/CVERecord?id=CVE-2025-37980 Référence CVE CVE-2025-37984 https://www.cve.org/CVERecord?id=CVE-2025-37984 Référence CVE CVE-2025-38006 https://www.cve.org/CVERecord?id=CVE-2025-38006 Référence CVE CVE-2025-38011 https://www.cve.org/CVERecord?id=CVE-2025-38011 Référence CVE CVE-2025-38014 https://www.cve.org/CVERecord?id=CVE-2025-38014 Référence CVE CVE-2025-38015 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0246Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2025-37943 Référence CVE CVE-2025-37944 https://www.cve.org/CVERecord?id=CVE-2025-37944 Référence CVE CVE-2025-37945 https://www.cve.org/CVERecord?id=CVE-2025-37945 Référence CVE CVE-2025-37947 https://www.cve.org/CVERecord?id=CVE-2025-37947 Référence CVE CVE-2025-37948 https://www.cve.org/CVERecord?id=CVE-2025-37948 Référence CVE CVE-2025-37949 https://www.cve.org/CVERecord?id=CVE-2025-37949 Référence CVE CVE-2025-37951 https://www.cve.org/CVERecord?id=CVE-2025-37951 Référence CVE CVE-2025-37952 https://www.cve.org/CVERecord?id=CVE-2025-37952 Référence CVE CVE-2025-37956 https://www.cve.org/CVERecord?id=CVE-2025-37956 Référence CVE CVE-2025-37957 https://www.cve.org/CVERecord?id=CVE-2025-37957 Référence CVE CVE-2025-37959 https://www.cve.org/CVERecord?id=CVE-2025-37959 Référence CVE CVE-2025-37960 https://www.cve.org/CVERecord?id=CVE-2025-37960 Référence CVE CVE-2025-37961 https://www.cve.org/CVERecord?id=CVE-2025-37961 Référence CVE CVE-2025-37962 https://www.cve.org/CVERecord?id=CVE-2025-37962 Référence CVE CVE-2025-37963 https://www.cve.org/CVERecord?id=CVE-2025-37963 Référence CVE CVE-2025-37967 https://www.cve.org/CVERecord?id=CVE-2025-37967 Référence CVE CVE-2025-37968 https://www.cve.org/CVERecord?id=CVE-2025-37968 Référence CVE CVE-2025-37969 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0227Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2025-37944 Référence CVE CVE-2025-37945 https://www.cve.org/CVERecord?id=CVE-2025-37945 Référence CVE CVE-2025-37947 https://www.cve.org/CVERecord?id=CVE-2025-37947 Référence CVE CVE-2025-37948 https://www.cve.org/CVERecord?id=CVE-2025-37948 Référence CVE CVE-2025-37949 https://www.cve.org/CVERecord?id=CVE-2025-37949 Référence CVE CVE-2025-37951 https://www.cve.org/CVERecord?id=CVE-2025-37951 Référence CVE CVE-2025-37952 https://www.cve.org/CVERecord?id=CVE-2025-37952 Référence CVE CVE-2025-37954 https://www.cve.org/CVERecord?id=CVE-2025-37954 Référence CVE CVE-2025-37956 https://www.cve.org/CVERecord?id=CVE-2025-37956 Référence CVE CVE-2025-37957 https://www.cve.org/CVERecord?id=CVE-2025-37957 Référence CVE CVE-2025-37959 https://www.cve.org/CVERecord?id=CVE-2025-37959 Référence CVE CVE-2025-37960 https://www.cve.org/CVERecord?id=CVE-2025-37960 Référence CVE CVE-2025-37961 https://www.cve.org/CVERecord?id=CVE-2025-37961 Référence CVE CVE-2025-37962 https://www.cve.org/CVERecord?id=CVE-2025-37962 Référence CVE CVE-2025-37963 https://www.cve.org/CVERecord?id=CVE-2025-37963 Référence CVE CVE-2025-37967 https://www.cve.org/CVERecord?id=CVE-2025-37967 Référence CVE CVE-2025-37968 https://www.cve.org/CVERecord?id=CVE-2025-37968 Référence CVE CVE-2025-37969 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0218Multiples vulnérabilités dans les produits VMware

d?id=CVE-2025-37944 Référence CVE CVE-2025-37945 https://www.cve.org/CVERecord?id=CVE-2025-37945 Référence CVE CVE-2025-37947 https://www.cve.org/CVERecord?id=CVE-2025-37947 Référence CVE CVE-2025-37948 https://www.cve.org/CVERecord?id=CVE-2025-37948 Référence CVE CVE-2025-37949 https://www.cve.org/CVERecord?id=CVE-2025-37949 Référence CVE CVE-2025-37951 https://www.cve.org/CVERecord?id=CVE-2025-37951 Référence CVE CVE-2025-37952 https://www.cve.org/CVERecord?id=CVE-2025-37952 Référence CVE CVE-2025-37954 https://www.cve.org/CVERecord?id=CVE-2025-37954 Référence CVE CVE-2025-37956 https://www.cve.org/CVERecord?id=CVE-2025-37956 Référence CVE CVE-2025-37957 https://www.cve.org/CVERecord?id=CVE-2025-37957 Référence CVE CVE-2025-37959 https://www.cve.org/CVERecord?id=CVE-2025-37959 Référence CVE CVE-2025-37960 https://www.cve.org/CVERecord?id=CVE-2025-37960 Référence CVE CVE-2025-37961 https://www.cve.org/CVERecord?id=CVE-2025-37961 Référence CVE CVE-2025-37962 https://www.cve.org/CVERecord?id=CVE-2025-37962 Référence CVE CVE-2025-37963 https://www.cve.org/CVERecord?id=CVE-2025-37963 Référence CVE CVE-2025-37967 https://www.cve.org/CVERecord?id=CVE-2025-37967 Référence CVE CVE-2025-37968 https://www.cve.org/CVERecord?id=CVE-2025-37968 Référence CVE CVE-2025-37969 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0194Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2025-37944 Référence CVE CVE-2025-37945 https://www.cve.org/CVERecord?id=CVE-2025-37945 Référence CVE CVE-2025-37947 https://www.cve.org/CVERecord?id=CVE-2025-37947 Référence CVE CVE-2025-37948 https://www.cve.org/CVERecord?id=CVE-2025-37948 Référence CVE CVE-2025-37949 https://www.cve.org/CVERecord?id=CVE-2025-37949 Référence CVE CVE-2025-37951 https://www.cve.org/CVERecord?id=CVE-2025-37951 Référence CVE CVE-2025-37952 https://www.cve.org/CVERecord?id=CVE-2025-37952 Référence CVE CVE-2025-37954 https://www.cve.org/CVERecord?id=CVE-2025-37954 Référence CVE CVE-2025-37956 https://www.cve.org/CVERecord?id=CVE-2025-37956 Référence CVE CVE-2025-37957 https://www.cve.org/CVERecord?id=CVE-2025-37957 Référence CVE CVE-2025-37959 https://www.cve.org/CVERecord?id=CVE-2025-37959 Référence CVE CVE-2025-37960 https://www.cve.org/CVERecord?id=CVE-2025-37960 Référence CVE CVE-2025-37961 https://www.cve.org/CVERecord?id=CVE-2025-37961 Référence CVE CVE-2025-37962 https://www.cve.org/CVERecord?id=CVE-2025-37962 Référence CVE CVE-2025-37963 https://www.cve.org/CVERecord?id=CVE-2025-37963 Référence CVE CVE-2025-37967 https://www.cve.org/CVERecord?id=CVE-2025-37967 Référence CVE CVE-2025-37968 https://www.cve.org/CVERecord?id=CVE-2025-37968 Référence CVE CVE-2025-37969 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0169Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2025-37944 Référence CVE CVE-2025-37945 https://www.cve.org/CVERecord?id=CVE-2025-37945 Référence CVE CVE-2025-37947 https://www.cve.org/CVERecord?id=CVE-2025-37947 Référence CVE CVE-2025-37948 https://www.cve.org/CVERecord?id=CVE-2025-37948 Référence CVE CVE-2025-37949 https://www.cve.org/CVERecord?id=CVE-2025-37949 Référence CVE CVE-2025-37951 https://www.cve.org/CVERecord?id=CVE-2025-37951 Référence CVE CVE-2025-37952 https://www.cve.org/CVERecord?id=CVE-2025-37952 Référence CVE CVE-2025-37954 https://www.cve.org/CVERecord?id=CVE-2025-37954 Référence CVE CVE-2025-37956 https://www.cve.org/CVERecord?id=CVE-2025-37956 Référence CVE CVE-2025-37957 https://www.cve.org/CVERecord?id=CVE-2025-37957 Référence CVE CVE-2025-37959 https://www.cve.org/CVERecord?id=CVE-2025-37959 Référence CVE CVE-2025-37960 https://www.cve.org/CVERecord?id=CVE-2025-37960 Référence CVE CVE-2025-37961 https://www.cve.org/CVERecord?id=CVE-2025-37961 Référence CVE CVE-2025-37962 https://www.cve.org/CVERecord?id=CVE-2025-37962 Référence CVE CVE-2025-37963 https://www.cve.org/CVERecord?id=CVE-2025-37963 Référence CVE CVE-2025-37967 https://www.cve.org/CVERecord?id=CVE-2025-37967 Référence CVE CVE-2025-37968 https://www.cve.org/CVERecord?id=CVE-2025-37968 Référence CVE CVE-2025-37969 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0721Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2025-37947 Référence CVE CVE-2025-37948 https://www.cve.org/CVERecord?id=CVE-2025-37948 Référence CVE CVE-2025-37949 https://www.cve.org/CVERecord?id=CVE-2025-37949 Référence CVE CVE-2025-37950 https://www.cve.org/CVERecord?id=CVE-2025-37950 Référence CVE CVE-2025-37951 https://www.cve.org/CVERecord?id=CVE-2025-37951 Référence CVE CVE-2025-37952 https://www.cve.org/CVERecord?id=CVE-2025-37952 Référence CVE CVE-2025-37954 https://www.cve.org/CVERecord?id=CVE-2025-37954 Référence CVE CVE-2025-37955 https://www.cve.org/CVERecord?id=CVE-2025-37955 Référence CVE CVE-2025-37956 https://www.cve.org/CVERecord?id=CVE-2025-37956 Référence CVE CVE-2025-37957 https://www.cve.org/CVERecord?id=CVE-2025-37957 Référence CVE CVE-2025-37958 https://www.cve.org/CVERecord?id=CVE-2025-37958 Référence CVE CVE-2025-37959 https://www.cve.org/CVERecord?id=CVE-2025-37959 Référence CVE CVE-2025-37960 https://www.cve.org/CVERecord?id=CVE-2025-37960 Référence CVE CVE-2025-37961 https://www.cve.org/CVERecord?id=CVE-2025-37961 Référence CVE CVE-2025-37962 https://www.cve.org/CVERecord?id=CVE-2025-37962 Référence CVE CVE-2025-37963 https://www.cve.org/CVERecord?id=CVE-2025-37963 Référence CVE CVE-2025-37964 https://www.cve.org/CVERecord?id=CVE-2025-37964 Référence CVE CVE-2025-37965 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0529Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2025-37936 Référence CVE CVE-2025-37937 https://www.cve.org/CVERecord?id=CVE-2025-37937 Référence CVE CVE-2025-37943 https://www.cve.org/CVERecord?id=CVE-2025-37943 Référence CVE CVE-2025-37944 https://www.cve.org/CVERecord?id=CVE-2025-37944 Référence CVE CVE-2025-37948 https://www.cve.org/CVERecord?id=CVE-2025-37948 Référence CVE CVE-2025-37949 https://www.cve.org/CVERecord?id=CVE-2025-37949 Référence CVE CVE-2025-37951 https://www.cve.org/CVERecord?id=CVE-2025-37951 Référence CVE CVE-2025-37953 https://www.cve.org/CVERecord?id=CVE-2025-37953 Référence CVE CVE-2025-37954 https://www.cve.org/CVERecord?id=CVE-2025-37954 Référence CVE CVE-2025-37957 https://www.cve.org/CVERecord?id=CVE-2025-37957 Référence CVE CVE-2025-37958 https://www.cve.org/CVERecord?id=CVE-2025-37958 Référence CVE CVE-2025-37959 https://www.cve.org/CVERecord?id=CVE-2025-37959 Référence CVE CVE-2025-37960 https://www.cve.org/CVERecord?id=CVE-2025-37960 Référence CVE CVE-2025-37963 https://www.cve.org/CVERecord?id=CVE-2025-37963 Référence CVE CVE-2025-37967 https://www.cve.org/CVERecord?id=CVE-2025-37967 Référence CVE CVE-2025-37968 https://www.cve.org/CVERecord?id=CVE-2025-37968 Référence CVE CVE-2025-37969 https://www.cve.org/CVERecord?id=CVE-2025-37969 Référence CVE CVE-2025-37970 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0509Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2025-37833 Référence CVE CVE-2025-37842 https://www.cve.org/CVERecord?id=CVE-2025-37842 Référence CVE CVE-2025-37860 https://www.cve.org/CVERecord?id=CVE-2025-37860 Référence CVE CVE-2025-37870 https://www.cve.org/CVERecord?id=CVE-2025-37870 Référence CVE CVE-2025-37879 https://www.cve.org/CVERecord?id=CVE-2025-37879 Référence CVE CVE-2025-37886 https://www.cve.org/CVERecord?id=CVE-2025-37886 Référence CVE CVE-2025-37887 https://www.cve.org/CVERecord?id=CVE-2025-37887 Référence CVE CVE-2025-37948 https://www.cve.org/CVERecord?id=CVE-2025-37948 Référence CVE CVE-2025-37949 https://www.cve.org/CVERecord?id=CVE-2025-37949 Référence CVE CVE-2025-37957 https://www.cve.org/CVERecord?id=CVE-2025-37957 Référence CVE CVE-2025-37958 https://www.cve.org/CVERecord?id=CVE-2025-37958 Référence CVE CVE-2025-37960 https://www.cve.org/CVERecord?id=CVE-2025-37960 Référence CVE CVE-2025-37963 https://www.cve.org/CVERecord?id=CVE-2025-37963 Référence CVE CVE-2025-37974 https://www.cve.org/CVERecord?id=CVE-2025-37974 Référence CVE CVE-2025-38152 https://www.cve.org/CVERecord?id=CVE-2025-38152 Référence CVE CVE-2025-38637 https://www.cve.org/CVERecord?id=CVE-2025-38637 Référence CVE CVE-2025-39728 https://www.cve.org/CVERecord?id=CVE-2025-39728 Référence CVE CVE-2025-40325 https://www.cve.org/CVERecord?id=

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2025-019412Linux の Linux Kernel における解放済みメモリの使用に関する脆弱性

Linux の Linux Kernel には、解放済みメモリの使用に関する脆弱性が存在します。

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix availability varies by product
Affected
Fixed
Linux: < 6.1, 6.6.92 ≤ 6.6.*, 6.12.29 ≤ 6.12.*, 6.14.7 ≤ 6.14.*, 6.15 ≤ *
Action
Use the product-specific evidence above. Patch only products with a verified fixed release, and keep every affected or under-investigation state without a matching fix in the remediation queue.
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 20 May 2025 · Last source change 5 Aug 2026, 11:58 UTC · CWE-416 · Use After Free

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2025-15905
Product sourceVendor CSAF · SUSE Product Security Team
Remediation sourceVendor CSAF · SUSE Product Security Team
CWE sourceNIST NVD
NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2025-37957 · cve.blacktree.nl