Low severity · published May 28, 2026
CVE-2026-47329
Incorrect validation of field size in Ubuntu Linux AppArmor notification responses
3.3
CVSS
0.1%
EPSS
No
On KEV
Description
Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches which fail to validate invalid sizes of the name field in AppAmor notification responses. The bug can be triggered by an unprivileged local user and could result in handling of crafted responses.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 0% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UL
Ubuntu Linux · Canonical
6.8.0 before 6.8.0-124.124; 6.17.0 before 6.17.0-35.35; 7.0.0 before 7.0.0-22.22 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-47329
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-47329
Patch
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble/commit/?id=9ea8b64b3ad27d0501cf711efa98077998a33b14
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