What is CVE-2025-13350?

CVE-2025-13350 is a unscored severity Linux kernel vulnerability, classified as a Use After Free flaw (CWE-416), affecting Linux kernel versions from 6.8.0-56.58 onward. CVE-2025-13350 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-13350?

CVE-2025-13350 has a CVSS score of pending NVD analysis out of 10, rated awaiting scoring severity.

Is there a patch available for CVE-2025-13350?

No patch is currently available for CVE-2025-13350. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2025-13350 actively exploited?

CVE-2025-13350 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Use After Free (CWE-416)?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/416.html

CVE-2025-13350

Ubuntu Linux 6.8 GA retains the legacy AF_UNIX garbage collector but backports upstream commit 8594d9b85c07 ("af_unix: Don’t call skb_get() for OOB skb"). When orphaned MSG_OOB sockets hit unix_gc(), the garbage collector still calls kfree_skb() as if OOB SKBs held two references; on Ubuntu Linux 6.8 (Noble Numbat) kernel tree, they have only the queue reference, so the buffer is freed while still reachable and subsequent queue walks dereference freed memory, yielding a reliable local privilege escalation (LPE) caused by a use-after-free (UAF). Ubuntu builds that have already taken the new GC stack from commit 4090fa373f0e, and mainline Linux kernels shipping that infrastructure are unaffected because they no longer execute the legacy collector path. This issue affects Ubuntu Linux from 6.8.0-56.58 before 6.8.0-84.84.

Package Linux Kernel

Published 2026-03-05

Last modified 2026-03-09

Patch available

Not yet patched

Weakness type

CWE-416

CVE-2025-13350 is a Use After Free vulnerability

What is Use After Free?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. Learn more on MITRE CWE

Affected versions

Linux kernel versions 6.8.0-56.58 and later are affected. No fixed version recorded yet.

Affected from

≥ 6.8.0-56.58

References

The following references provide additional information about CVE-2025-13350 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Frequently asked questions

What is CVE-2025-13350?

CVE-2025-13350 is a unscored severity Linux kernel vulnerability , classified as an Use After Free flaw (CWE-416) . It affects Linux kernel versions from 6.8.0-56.58 onward . CVE-2025-13350 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
Is there a patch available for CVE-2025-13350?

No patch is currently available for CVE-2025-13350. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2025-13350 actively exploited?

No — CVE-2025-13350 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Use After Free (CWE-416)?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. View CWE-416 on MITRE CWE →