Is CVE-2026-47331 actively exploited?

No active exploitation of CVE-2026-47331 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-47331 be exploited remotely?

No. CVE-2026-47331 requires local access to exploit.

What is the CVSS score of CVE-2026-47331?

CVE-2026-47331 has a CVSS score of 7.8 (HIGH).

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HIGH

CVE-2026-47331

CWE-416Published: May 28, 2026· Updated: May 29, 2026

7.8

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:2.6th

Official 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.

NVD Source

Technical Analysis

CVE-2026-47331 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

From a weakness classification perspective (CWE-416): Use-after-free vulnerabilities involve accessing memory after it has been freed, often enabling arbitrary code execution.