CVE-2026-47331

High

Open

TLP:CLEAR

Use-after-free in Ubuntu Linux AppArmor notification handling

NVD CVE.org

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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.

Details

CVSS Score: 7.8
EPSS Score ⓘ: 0.11%

1.7th percentile
CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Confidence: 90%
Published: May 28, 2026
Last Modified: May 28, 2026

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