SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2019-18814

There is a use-after-free when aa_label_parse() fails in aa_audit_rule_init() in security/apparmor/audit.c.

CRITICAL 9.8EPSS 2.50%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.50%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

An issue was discovered in the Linux kernel through 5.3.9. There is a use-after-free when aa_label_parse() fails in aa_audit_rule_init() in security/apparmor/audit.c.

CVSS 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
2.50% probability · 85th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-416
Affected
linux/linux kernel
Source
cve@mitre.org
EPSS trend
0%3%5%26 October 2026: 2.50%26 October 202626 October 2026

EPSS 2.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.