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Full vulnerability report · 2026
CVE-2026-53356High confidence

drm/i915/gem: Fix phys BO pread/pwrite with offset

Linux · Linux

7.8HighCVSS 3.1
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
Distribution package intelligence

Ubuntu vendor package status

Canonical’s release and source-package findings are shown separately from local repository availability.

20 package states
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.

Ubuntu releaseSource packageVendor stateFixed versionEvidence
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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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 record ↗Source updated 11 Sept 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-2026-53356 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitykernel: drm/i915/gem: Fix phys BO pread/pwrite with offset
22 known affected

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

  • kernel-rt as a component of Red Hat Enterprise Linux 9
  • kernel-rt-core as a component of Red Hat Enterprise Linux 9
  • kernel-rt-debug as a component of Red Hat Enterprise Linux 9
  • kernel-rt-debug-core as a component of Red Hat Enterprise Linux 9
  • kernel-rt-debug-devel as a component of Red Hat Enterprise Linux 9
  • kernel-rt-debug-devel-matched as a component of Red Hat Enterprise Linux 9
  • kernel-rt-debug-kvm as a component of Red Hat Enterprise Linux 9
  • kernel-rt-debug-modules as a component of Red Hat Enterprise Linux 9
  • kernel-rt-debug-modules-core as a component of Red Hat Enterprise Linux 9
  • kernel-rt-debug-modules-extra as a component of Red Hat Enterprise Linux 9
  • kernel-rt-debug-modules-internal as a component of Red Hat Enterprise Linux 9
  • kernel-rt-debug-modules-partner as a component of Red Hat Enterprise Linux 9
Summary
A flaw was found in the Linux kernel's `drm/i915/gem` component. This vulnerability occurs because the `sg_page()` function incorrectly scales `pread/pwrite` operations for physical Buffer Objects (BO) when a non-zero offset is used. This can lead to incorrect memory access, potentially allowing an attacker to read or write to unintended memory regions. Such access could result in information disclosure or data corruption.
Remediation
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Red Hat recommends treating all kernel errata as security-relevant. Given the kernel's fundamental role, any bug has a higher chance of impacting system security, even if that impact only becomes clear after a fix is published. Therefore, Red Hat prioritizes delivering fixes that improve our customers' overall security posture. Because of this proactive approach, a patch may be associated with a CVE assignment at a future date. Retroactive CVE assignments are always documented in the corresponding errata and on Red Hat's CVE pages. We strongly advise against delaying updates, as doing so may leave your system exposed when protections are already available.
Optional official sources

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

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

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-2026-40990

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 actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

In the Linux kernel, the following vulnerability has been resolved: drm/i915/gem: Fix phys BO pread/pwrite with offset sg_page() returns struct page pointer not (void *) so the scaling of pread/pwrite is wrong for phys BO and wrong parts of BO would be accessed if non-zero offset is used. Last impacted platform with overlay or cursor planes using phys mapping was Gen3/945G/Lakeport. (cherry picked from commit 3e49a2f85070b2fb672c1e0fdba281a4ea3aebe6)

What

In the Linux kernel, the following vulnerability has been resolved: drm/i915/gem: Fix phys BO pread/pwrite with offset sg_page() returns struct page pointer not (void *) so the scaling of pread/pwrite is wrong for phys BO and wrong parts of BO would be accessed if non-zero offset is used. Last impacted platform with overlay or cursor planes using phys mapping was Gen3/945G/Lakeport. (cherry picked from commit 3e49a2f85070b2fb672c1e0fdba281a4ea3aebe6)

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

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: drm/i915/gem: Fix phys BO pread/pwrite with offset sg_page() returns struct page pointer not (void *) so the scaling of pread/pwrite is wrong for phys BO and wrong parts of BO would be accessed if non-zero offset is used. Last impacted platform with overlay or cursor planes using phys mapping was Gen3/945G/Lakeport. (cherry picked from commit 3e49a2f85070b2fb672c1e0fdba281a4ea3aebe6)

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

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 → vulnerable operation → 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
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration.
CWE not yet assigned
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:U/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.SUnchangedScope: The security impact remains within the vulnerable component's 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.
A

Official authority intelligence

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

BSI · German · WID-SEC-2026-2175Linux Kernel: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen, darunter möglicherweise das Auslösen eines Denial-of-Service-Zustands, die Umgehung von Sicherheitsmaßnahmen oder das Verursachen von Speicherbeschädigungen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260708Security Bulletin 8 July 2026 [PDF, 1MB]]

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 8 July 2026 [PDF, 1MB]], published on 8 July 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1162Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-53347 Référence CVE CVE-2026-53348 https://www.cve.org/CVERecord?id=CVE-2026-53348 Référence CVE CVE-2026-53349 https://www.cve.org/CVERecord?id=CVE-2026-53349 Référence CVE CVE-2026-53350 https://www.cve.org/CVERecord?id=CVE-2026-53350 Référence CVE CVE-2026-53351 https://www.cve.org/CVERecord?id=CVE-2026-53351 Référence CVE CVE-2026-53352 https://www.cve.org/CVERecord?id=CVE-2026-53352 Référence CVE CVE-2026-53353 https://www.cve.org/CVERecord?id=CVE-2026-53353 Référence CVE CVE-2026-53354 https://www.cve.org/CVERecord?id=CVE-2026-53354 Référence CVE CVE-2026-53355 https://www.cve.org/CVERecord?id=CVE-2026-53355 Référence CVE CVE-2026-53356 https://www.cve.org/CVERecord?id=CVE-2026-53356 Référence CVE CVE-2026-53357 https://www.cve.org/CVERecord?id=CVE-2026-53357 Référence CVE CVE-2026-53358 https://www.cve.org/CVERecord?id=CVE-2026-53358 Référence CVE CVE-2026-53359 https://www.cve.org/CVERecord?id=CVE-2026-53359 Référence CVE CVE-2026-53360 https://www.cve.org/CVERecord?id=CVE-2026-53360 Référence CVE CVE-2026-53361 https://www.cve.org/CVERecord?id=CVE-2026-53361 Référence CVE CVE-2026-53362 https://www.cve.org/CVERecord?id=CVE-2026-53362 Référence CVE CVE-2026-53363 https://www.cve.org/CVERecord?id=CVE-2026-53363 Référence CVE CVE-2026-53364 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1064Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-53325 Référence CVE CVE-2026-53329 https://www.cve.org/CVERecord?id=CVE-2026-53329 Référence CVE CVE-2026-53331 https://www.cve.org/CVERecord?id=CVE-2026-53331 Référence CVE CVE-2026-53332 https://www.cve.org/CVERecord?id=CVE-2026-53332 Référence CVE CVE-2026-53339 https://www.cve.org/CVERecord?id=CVE-2026-53339 Référence CVE CVE-2026-53345 https://www.cve.org/CVERecord?id=CVE-2026-53345 Référence CVE CVE-2026-53347 https://www.cve.org/CVERecord?id=CVE-2026-53347 Référence CVE CVE-2026-53350 https://www.cve.org/CVERecord?id=CVE-2026-53350 Référence CVE CVE-2026-53355 https://www.cve.org/CVERecord?id=CVE-2026-53355 Référence CVE CVE-2026-53356 https://www.cve.org/CVERecord?id=CVE-2026-53356 Référence CVE CVE-2026-53357 https://www.cve.org/CVERecord?id=CVE-2026-53357 Référence CVE CVE-2026-53358 https://www.cve.org/CVERecord?id=CVE-2026-53358 Référence CVE CVE-2026-53359 https://www.cve.org/CVERecord?id=CVE-2026-53359 Référence CVE CVE-2026-53360 https://www.cve.org/CVERecord?id=CVE-2026-53360 Référence CVE CVE-2026-53366 https://www.cve.org/CVERecord?id=CVE-2026-53366 Référence CVE CVE-2026-53369 https://www.cve.org/CVERecord?id=CVE-2026-53369 Référence CVE CVE-2026-53374 https://www.cve.org/CVERecord?id=CVE-2026-53374 Référence CVE CVE-2026-53375 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0927Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-53293 Référence CVE CVE-2026-53306 https://www.cve.org/CVERecord?id=CVE-2026-53306 Référence CVE CVE-2026-53313 https://www.cve.org/CVERecord?id=CVE-2026-53313 Référence CVE CVE-2026-53325 https://www.cve.org/CVERecord?id=CVE-2026-53325 Référence CVE CVE-2026-53329 https://www.cve.org/CVERecord?id=CVE-2026-53329 Référence CVE CVE-2026-53339 https://www.cve.org/CVERecord?id=CVE-2026-53339 Référence CVE CVE-2026-53347 https://www.cve.org/CVERecord?id=CVE-2026-53347 Référence CVE CVE-2026-53350 https://www.cve.org/CVERecord?id=CVE-2026-53350 Référence CVE CVE-2026-53355 https://www.cve.org/CVERecord?id=CVE-2026-53355 Référence CVE CVE-2026-53356 https://www.cve.org/CVERecord?id=CVE-2026-53356 Référence CVE CVE-2026-53357 https://www.cve.org/CVERecord?id=CVE-2026-53357 Référence CVE CVE-2026-53358 https://www.cve.org/CVERecord?id=CVE-2026-53358 Référence CVE CVE-2026-53359 https://www.cve.org/CVERecord?id=CVE-2026-53359 Référence CVE CVE-2026-53360 https://www.cve.org/CVERecord?id=CVE-2026-53360 Référence CVE CVE-2026-53362 https://www.cve.org/CVERecord?id=CVE-2026-53362 Référence CVE CVE-2026-53366 https://www.cve.org/CVERecord?id=CVE-2026-53366 Gestion détaillée du document le 24 juillet 2026 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0866Multiples vulnérabilités dans Microsoft Azure Linux

de sécurité Microsoft Azure Linux CVE-2026-53329 du 02 juillet 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-53337 du 02 juillet 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-53343 du 02 juillet 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-53347 du 02 juillet 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-53349 du 02 juillet 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-53352 du 02 juillet 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-53353 du 02 juillet 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-53355 du 02 juillet 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-53356 du 02 juillet 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-12912 du 03 juillet 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-14164 du 03 juillet 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-53357 du 03 juillet 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-12413 du 04 juillet 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-50721 du 04 juillet 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-50722 du 04 juillet 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-53223 du 04 juillet 2026 Bulletin de sécurité Microsoft Azure Linux CVE-2026-53269 du 09 juillet 2026 Une gestion de

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0862Multiples vulnérabilités dans le noyau Linux de Debian LTS

d?id=CVE-2026-53337 Référence CVE CVE-2026-53339 https://www.cve.org/CVERecord?id=CVE-2026-53339 Référence CVE CVE-2026-53341 https://www.cve.org/CVERecord?id=CVE-2026-53341 Référence CVE CVE-2026-53343 https://www.cve.org/CVERecord?id=CVE-2026-53343 Référence CVE CVE-2026-53349 https://www.cve.org/CVERecord?id=CVE-2026-53349 Référence CVE CVE-2026-53350 https://www.cve.org/CVERecord?id=CVE-2026-53350 Référence CVE CVE-2026-53352 https://www.cve.org/CVERecord?id=CVE-2026-53352 Référence CVE CVE-2026-53354 https://www.cve.org/CVERecord?id=CVE-2026-53354 Référence CVE CVE-2026-53355 https://www.cve.org/CVERecord?id=CVE-2026-53355 Référence CVE CVE-2026-53356 https://www.cve.org/CVERecord?id=CVE-2026-53356 Référence CVE CVE-2026-53357 https://www.cve.org/CVERecord?id=CVE-2026-53357 Référence CVE CVE-2026-53359 https://www.cve.org/CVERecord?id=CVE-2026-53359 Référence CVE CVE-2026-53361 https://www.cve.org/CVERecord?id=CVE-2026-53361 Référence CVE CVE-2026-53362 https://www.cve.org/CVERecord?id=CVE-2026-53362 Gestion détaillée du document le 10 juillet 2026 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À propos Contact cyber.gouv.fr service-public.fr legifrance.gouv.fr info.gouv.fr france.fr info.gouv.fr/risques Premier Ministre / Secrétariat Général de

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-024881LinuxのLinux Kernelにおける不特定の脆弱性

Linuxカーネルにおいて、以下の脆弱性が修正されました：drm/i915/gemのオフセット付き物理BOのpread/pwriteの問題です。sg_page()は(struct page *)ポインタを返し、(void *)ではないため、pread/pwriteのスケーリングが物理BOに対して誤っていました。その結果、非ゼロのオフセットが使用された場合にBOの誤った部分にアクセスしてしまう問題が発生していました。overlayやカーソルプレーンで物理マッピングを使用する最後の影響を受けるプラットフォームはGen3/945G/Lakeportです。（この修正はコミット3e49a2f85070b2fb672c1e0fdba281a4ea3aebe6からcherry pickされたものです）

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.
Patch available
Affected
Fixed
Action
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Red Hat recommends treating all kernel errata as security-relevant. Given the kernel's fundamental role, any bug has a higher chance of impacting system security, even if that impact only becomes clear after a fix is published. Therefore, Red Hat prioritizes delivering fixes that improve our customers' overall security posture. Because of this proactive approach, a patch may be associated with a CVE assignment at a future date. Retroactive CVE assignments are always documented in the corresponding errata and on Red Hat's CVE pages. We strongly advise against delaying updates, as doing so may leave your system exposed when protections are already available.
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 1 Jul 2026 · Last source change 5 Aug 2026, 12:35 UTC · CWE not yet assigned

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-2026-40990
Product sourceVendor CSAF · Red Hat Product Security
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceUnavailable
NVD statusNVD enriched

Missing structured fields: CWE classification. Missing data is not evidence of low risk; review the primary advisory.

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
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2026-40990↗Vendor CSAF · Red Hat Product Security↗CVE authority or vendor reference↗Patch or update reference↗Patch or update reference↗Patch or update reference↗Official CVE record (CNA and ADP data)↗NVD record↗
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-2026-53356 · cve.blacktree.nl