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Fencer Vulns
low 3.3

CVE-2026-47336 json

Use of uninitialized value in Ubuntu Linux AppArmor IPv4/IPv6 socket mediation rules

published 2026-05-28 5 mo ago modified 2026-10-14 25 d ago also EUVD-2026-32991

cvss
3.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 0%
public exploits
0
none known

Summary

Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/AF_INET6 socket mediation code. The bug can be triggered by an unprivileged local user and could result in incorrect fine-grained mediation of network sockets.

Patch / fix

  • Canonical Ubuntu Linux 6.8.0-124.124
  • linux Ubuntu 24.04 LTS 6.8.0-124.124
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1057.60
  • linux-gcp Ubuntu 24.04 LTS 6.8.0-1060.63
  • linux-gke Ubuntu 24.04 LTS 6.8.0-1055.61
  • linux-ibm Ubuntu 24.04 LTS 6.8.0-1057.58
  • linux-azure Ubuntu 24.04 LTS 6.8.0-1058.64
  • linux-gkeop Ubuntu 24.04 LTS 6.8.0-1042.45
  • linux-raspi Ubuntu 24.04 LTS 6.8.0-1057.61

ubuntu advisories UBUNTU-CVE-2026-47336

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
5 mo ago

Exploit prediction

0.09% chance of exploitation in the next 30 days, higher than 0% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Affected products

  • Canonical Ubuntu Linux

Classification

Weakness
  • CWE-457 Use of Uninitialized Variable

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.