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Full vulnerability report · 2026
CVE-2025-68784High confidence

xfs: fix a UAF problem in xattr repair

Linux · Linux

UnscoredAssess manually
Recommended action
Needs assessment

No CVSS base score is available from the CNA, CISA ADP or NIST. Absence of a score is not evidence of low risk; review the vendor advisory, affected exposure and exploit evidence.

Patch available
Distribution package intelligence

Ubuntu vendor package status

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

13 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 archivelinux-aws-6.14Affected, 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 9 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-azure-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 9 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-azure-fde-6.14Affected, 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 9 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-azure-nvidia-6.14Affected, 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 9 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-gcp-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 9 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-hwe-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 9 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-lowlatency-hwe-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 9 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-nvidia-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 9 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 9 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-oracle-6.14Affected, 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 9 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 9 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 9 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 9 Sept 2026
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-2026-2324

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 actionNeeds assessment

No CVSS base score is available from the CNA, CISA ADP or NIST. Absence of a score is not evidence of low risk; review the vendor advisory, affected exposure and exploit evidence.

Patch available
01

What, why and how

In the Linux kernel, the following vulnerability has been resolved: xfs: fix a UAF problem in xattr repair The xchk_setup_xattr_buf function can allocate a new value buffer, which means that any reference to ab->value before the call could become a dangling pointer. Fix this by moving an assignment to after the buffer setup.

What

In the Linux kernel, the following vulnerability has been resolved: xfs: fix a UAF problem in xattr repair The xchk_setup_xattr_buf function can allocate a new value buffer, which means that any reference to ab->value before the call could become a dangling pointer. Fix this by moving an assignment to after the buffer setup.

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 the affected interface may attempt exploitation when the stated preconditions are met. 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: xfs: fix a UAF problem in xattr repair The xchk_setup_xattr_buf function can allocate a new value buffer, which means that any reference to ab->value before the call could become a dangling pointer. Fix this by moving an assignment to after the buffer setup.

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 the affected interface may attempt exploitation when the stated preconditions are met. 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
the affected interface → vulnerable operation → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Unspecified
Privileges required
Not stated in the selected CVSS metric
User interaction
Not stated in the selected CVSS metric
Attack complexity
Not stated in the selected CVSS metric
Security boundary
Not stated in the selected CVSS metric
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.
Not available from the selected scoring authority.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
A

Official authority intelligence

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

BSI · German · WID-SEC-W-2026-0086Linux Kernel: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen um nicht näher spezifizierte Angriffe durchzuführen, die möglicherweise zu einer Denial-of-Service- Bedingung führen oder eine Speicherbeschädigung verursachen können.

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0495Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2025-68774 Référence CVE CVE-2025-68775 https://www.cve.org/CVERecord?id=CVE-2025-68775 Référence CVE CVE-2025-68776 https://www.cve.org/CVERecord?id=CVE-2025-68776 Référence CVE CVE-2025-68777 https://www.cve.org/CVERecord?id=CVE-2025-68777 Référence CVE CVE-2025-68778 https://www.cve.org/CVERecord?id=CVE-2025-68778 Référence CVE CVE-2025-68780 https://www.cve.org/CVERecord?id=CVE-2025-68780 Référence CVE CVE-2025-68781 https://www.cve.org/CVERecord?id=CVE-2025-68781 Référence CVE CVE-2025-68782 https://www.cve.org/CVERecord?id=CVE-2025-68782 Référence CVE CVE-2025-68783 https://www.cve.org/CVERecord?id=CVE-2025-68783 Référence CVE CVE-2025-68784 https://www.cve.org/CVERecord?id=CVE-2025-68784 Référence CVE CVE-2025-68785 https://www.cve.org/CVERecord?id=CVE-2025-68785 Référence CVE CVE-2025-68786 https://www.cve.org/CVERecord?id=CVE-2025-68786 Référence CVE CVE-2025-68787 https://www.cve.org/CVERecord?id=CVE-2025-68787 Référence CVE CVE-2025-68788 https://www.cve.org/CVERecord?id=CVE-2025-68788 Référence CVE CVE-2025-68791 https://www.cve.org/CVERecord?id=CVE-2025-68791 Référence CVE CVE-2025-68792 https://www.cve.org/CVERecord?id=CVE-2025-68792 Référence CVE CVE-2025-68793 https://www.cve.org/CVERecord?id=CVE-2025-68793 Référence CVE CVE-2025-68794 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0453Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2025-68774 Référence CVE CVE-2025-68775 https://www.cve.org/CVERecord?id=CVE-2025-68775 Référence CVE CVE-2025-68776 https://www.cve.org/CVERecord?id=CVE-2025-68776 Référence CVE CVE-2025-68777 https://www.cve.org/CVERecord?id=CVE-2025-68777 Référence CVE CVE-2025-68778 https://www.cve.org/CVERecord?id=CVE-2025-68778 Référence CVE CVE-2025-68780 https://www.cve.org/CVERecord?id=CVE-2025-68780 Référence CVE CVE-2025-68781 https://www.cve.org/CVERecord?id=CVE-2025-68781 Référence CVE CVE-2025-68782 https://www.cve.org/CVERecord?id=CVE-2025-68782 Référence CVE CVE-2025-68783 https://www.cve.org/CVERecord?id=CVE-2025-68783 Référence CVE CVE-2025-68784 https://www.cve.org/CVERecord?id=CVE-2025-68784 Référence CVE CVE-2025-68785 https://www.cve.org/CVERecord?id=CVE-2025-68785 Référence CVE CVE-2025-68786 https://www.cve.org/CVERecord?id=CVE-2025-68786 Référence CVE CVE-2025-68787 https://www.cve.org/CVERecord?id=CVE-2025-68787 Référence CVE CVE-2025-68788 https://www.cve.org/CVERecord?id=CVE-2025-68788 Référence CVE CVE-2025-68791 https://www.cve.org/CVERecord?id=CVE-2025-68791 Référence CVE CVE-2025-68792 https://www.cve.org/CVERecord?id=CVE-2025-68792 Référence CVE CVE-2025-68793 https://www.cve.org/CVERecord?id=CVE-2025-68793 Référence CVE CVE-2025-68794 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0247Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2025-68768 Référence CVE CVE-2025-68770 https://www.cve.org/CVERecord?id=CVE-2025-68770 Référence CVE CVE-2025-68771 https://www.cve.org/CVERecord?id=CVE-2025-68771 Référence CVE CVE-2025-68773 https://www.cve.org/CVERecord?id=CVE-2025-68773 Référence CVE CVE-2025-68775 https://www.cve.org/CVERecord?id=CVE-2025-68775 Référence CVE CVE-2025-68776 https://www.cve.org/CVERecord?id=CVE-2025-68776 Référence CVE CVE-2025-68777 https://www.cve.org/CVERecord?id=CVE-2025-68777 Référence CVE CVE-2025-68778 https://www.cve.org/CVERecord?id=CVE-2025-68778 Référence CVE CVE-2025-68783 https://www.cve.org/CVERecord?id=CVE-2025-68783 Référence CVE CVE-2025-68784 https://www.cve.org/CVERecord?id=CVE-2025-68784 Référence CVE CVE-2025-68788 https://www.cve.org/CVERecord?id=CVE-2025-68788 Référence CVE CVE-2025-68789 https://www.cve.org/CVERecord?id=CVE-2025-68789 Référence CVE CVE-2025-68792 https://www.cve.org/CVERecord?id=CVE-2025-68792 Référence CVE CVE-2025-68795 https://www.cve.org/CVERecord?id=CVE-2025-68795 Référence CVE CVE-2025-68797 https://www.cve.org/CVERecord?id=CVE-2025-68797 Référence CVE CVE-2025-68798 https://www.cve.org/CVERecord?id=CVE-2025-68798 Référence CVE CVE-2025-68799 https://www.cve.org/CVERecord?id=CVE-2025-68799 Référence CVE CVE-2025-68800 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0166Multiples vulnérabilités dans le noyau Linux de Debian

d?id=CVE-2025-68774 Référence CVE CVE-2025-68775 https://www.cve.org/CVERecord?id=CVE-2025-68775 Référence CVE CVE-2025-68776 https://www.cve.org/CVERecord?id=CVE-2025-68776 Référence CVE CVE-2025-68777 https://www.cve.org/CVERecord?id=CVE-2025-68777 Référence CVE CVE-2025-68778 https://www.cve.org/CVERecord?id=CVE-2025-68778 Référence CVE CVE-2025-68780 https://www.cve.org/CVERecord?id=CVE-2025-68780 Référence CVE CVE-2025-68781 https://www.cve.org/CVERecord?id=CVE-2025-68781 Référence CVE CVE-2025-68782 https://www.cve.org/CVERecord?id=CVE-2025-68782 Référence CVE CVE-2025-68783 https://www.cve.org/CVERecord?id=CVE-2025-68783 Référence CVE CVE-2025-68784 https://www.cve.org/CVERecord?id=CVE-2025-68784 Référence CVE CVE-2025-68785 https://www.cve.org/CVERecord?id=CVE-2025-68785 Référence CVE CVE-2025-68786 https://www.cve.org/CVERecord?id=CVE-2025-68786 Référence CVE CVE-2025-68787 https://www.cve.org/CVERecord?id=CVE-2025-68787 Référence CVE CVE-2025-68788 https://www.cve.org/CVERecord?id=CVE-2025-68788 Référence CVE CVE-2025-68789 https://www.cve.org/CVERecord?id=CVE-2025-68789 Référence CVE CVE-2025-68792 https://www.cve.org/CVERecord?id=CVE-2025-68792 Référence CVE CVE-2025-68794 https://www.cve.org/CVERecord?id=CVE-2025-68794 Référence CVE CVE-2025-68795 https://www.cve.org/CVERecord?id=

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
e47dcf113ae348678143cc935a1183059c02c9ad < 1e2d3aa19c7962b9474b22893160cb460494c45f; e47dcf113ae348678143cc935a1183059c02c9ad < d29ed9ff972afe17c215cab171761d7a15d7063f; e47dcf113ae348678143cc935a1183059c02c9ad < 5990fd756943836978ad184aac980e2b36ab7e01; 6.10
Fixed
< 6.10; 6.12.64 ≤ 6.12.*; 6.18.3 ≤ 6.18.*; 6.19 ≤ *
Action
Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 13 Jan 2026 · Last source change 11 May 2026, 21:53 UTC · CWE not yet assigned

CVE recordCVE.org · 5.2
CVSS sourceUnavailable
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-2026-2324
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceUnavailable
NVD statusNVD not scheduled

Missing structured fields: CVSS base score, 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
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-2025-68784 · cve.blacktree.nl