CVE-2026-47329: low-severity vulnerability in Canonical Ubuntu Linux
Incorrect validation of field size in Ubuntu Linux AppArmor notification responses
Published
8Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 3.3epss 0.1%
exploitation probability
0.1%top 98% of all CVEs
observed exploitation
nono source reports it
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:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Affected products
Canonical · Ubuntu LinuxRelated CVEs — Canonical Ubuntu Linux
In the same product, most dangerous first.
CVE-2026-47331HIGHUse-after-free in Ubuntu Linux AppArmor notification handlingEPSS 0.2%CVE-2026-47333HIGHOut-of-bounds read in Ubuntu Linux AppArmor notification handlingEPSS 0.2%CVE-2025-13350HIGHUse-after-free of orphaned AF_UNIX in Ubuntu builds of Linux kernelEPSS 0.2%CVE-2026-47332MEDIUMOut-of-bounds read in Ubuntu Linux AppArmor notification handlingEPSS 0.1%CVE-2026-47335MEDIUMNULL pointer dereference in Ubuntu Linux AppArmor notification handlingEPSS 0.1%CVE-2026-47328MEDIUMInvalid pointer deallocation in Ubuntu Linux AppArmor notification handlingEPSS 0.1%