CVE-2026-47337

NULL pointer dereference in Ubuntu Linux AppArmor IPv4/IPv6 socket mediation

LOW

3.3

CVSS Score

Published: May 28, 2026 at 06:29 PM UTC

Updated: October 14, 2026 at 08:10 PM UTC

1 product affected across 1 vendorUbuntu Linux

Using Ubuntu Linux by Canonical?

Get instant alerts when new vulnerabilities affect Ubuntu Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available

Start Free Sign In

Severity

LOW3.3

Exploit prediction

EPSS 0.1%

SSVC

No known exploit

Description

Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling of AF_INET/AF_INET6 socket mediation. The bug can be triggered by an unprivileged local user. This can lead to a kernel oops.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Ubuntu Linux · Canonicalrubygems

95%

6.17 6.17.0 6.8 6.8.0 7.0 7.0.0

Affected range stops below 6.17.0-35.35, so it looks safe — our inference, not a vendor statement

Affected range stops below 6.8.0-124.124, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.0.0-22.22, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble/commit/?id=9f03f0012a2367efae1edb4798f1c5103aeb6cbc

References (1)

PatchBroken Link

Source: cverecord

https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble/commit/?id=9f03f0012a2367efae1edb4798f1c5103aeb6cbc

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.3LOWcanonical

Attack Vector: LOCAL
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: LOW

Vector?

Quick Info

StatusANALYZED

CWE

CWE-476

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create account Sign in

Free plan, no card