CVE-2026-47337: CWE-476 NULL pointer dereference in Canonical Ubuntu Linux
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.
AI Analysis
Technical Summary
CVE-2026-47337 is a NULL pointer dereference vulnerability in Canonical's Ubuntu Linux versions 6.8.0, 6.17.0, and 7.0.0. The issue arises in the kernel's handling of AF_INET and AF_INET6 socket mediation, where an unprivileged local user can trigger a kernel oops by causing a NULL pointer dereference. This results in a denial of service condition but does not impact confidentiality or integrity. The vulnerability is classified under CWE-476 (NULL Pointer Dereference) and has a CVSS 3.1 base score of 3.3, indicating low severity. No known exploits are reported in the wild, and no vendor advisory or patch information is currently available.
Potential Impact
The vulnerability allows an unprivileged local user to cause a kernel oops via a NULL pointer dereference in socket mediation code, resulting in a denial of service condition. There is no impact on confidentiality or integrity. No known exploits have been reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict unprivileged local user access where possible to reduce risk of exploitation.
CVE-2026-47337: CWE-476 NULL pointer dereference in Canonical Ubuntu Linux
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.
CVSS v3.1
Score 3.3low
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-47337 is a NULL pointer dereference vulnerability in Canonical's Ubuntu Linux versions 6.8.0, 6.17.0, and 7.0.0. The issue arises in the kernel's handling of AF_INET and AF_INET6 socket mediation, where an unprivileged local user can trigger a kernel oops by causing a NULL pointer dereference. This results in a denial of service condition but does not impact confidentiality or integrity. The vulnerability is classified under CWE-476 (NULL Pointer Dereference) and has a CVSS 3.1 base score of 3.3, indicating low severity. No known exploits are reported in the wild, and no vendor advisory or patch information is currently available.
Potential Impact
The vulnerability allows an unprivileged local user to cause a kernel oops via a NULL pointer dereference in socket mediation code, resulting in a denial of service condition. There is no impact on confidentiality or integrity. No known exploits have been reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict unprivileged local user access where possible to reduce risk of exploitation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- canonical
- Date Reserved
- 2026-05-19T10:37:36.434Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a188e0de29bf47b501d690b
Added to database: 5/28/2026, 6:48:45 PM
Last enriched: 5/28/2026, 7:04:08 PM
Last updated: 5/29/2026, 12:14:26 PM
Views: 134
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