CVE-2026-47331CWE-416
Use-after-free in Ubuntu Linux AppArmor notification handling
High · published May 28, 2026
What it is
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.
The record
Technical detail
- CVSS v3.1
- 7.8 · HIGH
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS v4.0
- Not supplied
- EPSS
- 0.00167 · 5.7th percentile
- Weakness
- CWE-416 · Use After Free
- Published
- 2026-05-28T18:28Z
EPSS history
Timeline