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Ubuntu Linux — Vulnerabilities & Security Advisories 13

All 13 CVE vulnerabilities found in Ubuntu Linux, with AI-generated Chinese analysis, references, and POCs.

This is a vulnerability aggregation page for the vendor Canonical, product Ubuntu Linux, categorized under common weakness enumeration tags. The page collects records of security flaws affecting this widely used Linux distribution, encompassing various severity levels from critical system compromises to minor information disclosures. It covers vulnerabilities identified and disclosed between January 1, 2015, and the present date, ensuring a comprehensive historical view of the security landscape for this operating system. Readers can use this resource to track Canonical’s security advisories as they are issued, gaining insight into the vendor’s response times and patch management practices. Additionally, users can analyze trends within specific weakness classes, such as buffer overflows or privilege escalation bugs, to understand recurring patterns in the codebase. The interface also allows for looking up the complete vulnerability history of Ubuntu Linux releases, helping administrators assess the risk profile of their current deployments. By aggregating these data points, the page serves as a central reference for security professionals, developers, and system administrators who need to evaluate the stability and security posture of Ubuntu Linux over time. This consolidated view aids in making informed decisions regarding upgrades, mitigation strategies, and long-term maintenance schedules without relying on fragmented sources.

Vendor: Canonical

CVE IDTitleCVSSSeverityPublished
CVE-2026-47337 NULL pointer dereference in Ubuntu Linux AppArmor IPv4/IPv6 socket mediation CWE-476 3.3 Low2026-05-28
CVE-2026-47336 Use of uninitialized value in Ubuntu Linux AppArmor IPv4/IPv6 socket mediation rules CWE-457 3.3 Low2026-05-28
CVE-2026-47335 NULL pointer dereference in Ubuntu Linux AppArmor notification handling CWE-476 5.5 Medium2026-05-28
CVE-2026-47334 Deadlock or kernel panic in Ubuntu Linux AppArmor notification handling CWE-833 5.5 Medium2026-05-28
CVE-2026-47333 Out-of-bounds read in Ubuntu Linux AppArmor notification handling CWE-125 7.8 High2026-05-28
CVE-2026-47332 Out-of-bounds read in Ubuntu Linux AppArmor notification handling CWE-125 5.5 Medium2026-05-28
CVE-2026-47331 Use-after-free in Ubuntu Linux AppArmor notification handling CWE-416 7.8 High2026-05-28
CVE-2026-47330 Use of uninitialized value in Ubuntu Linux AppArmor notification handling CWE-457 3.3 Low2026-05-28
CVE-2026-47329 Incorrect validation of field size in Ubuntu Linux AppArmor notification responses CWE-1284 3.3 Low2026-05-28
CVE-2026-47328 Invalid pointer deallocation in Ubuntu Linux AppArmor notification handling CWE-590 6.1 Medium2026-05-28
CVE-2026-47327 NULL pointer dereference in Ubuntu Linux AppArmor notification handling CWE-476 3.3 Low2026-05-28
CVE-2026-47326 Memory leak in Ubuntu Linux AppArmor large notification response allocation CWE-401 5.5 Medium2026-05-28
CVE-2025-13350 Use-after-free of orphaned AF_UNIX in Ubuntu builds of Linux kernel CWE-416 5.5 -2026-03-05

All 13 known CVE vulnerabilities affecting Ubuntu Linux with full Chinese analysis, references, and POCs where available.