CVE-2026-47331 — HIGH (7.8)

Vulnerability Description

Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An unprivileged local user could trigger the race condition that can lead to a use-after-free (UAF) and, theoretically, arbitrary code execution.

CVSS Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Canonical	Ubuntu Linux	24.04

Related Weaknesses (CWE)

CWE-416

References

https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble/commit/Patch

FAQ

What is CVE-2026-47331?

CVE-2026-47331 is a vulnerability with a CVSS score of 7.8 (HIGH). Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An unprivileged local user could trigger the race condition that can lead to a use-after-fre...

How severe is CVE-2026-47331?

CVE-2026-47331 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-47331?

Check the references section above for vendor advisories and patch information. Affected products include: Canonical Ubuntu Linux.