CVE-2013-7446: n/a vulnerability

CVE-2013-7446: Use-after-free vulnerability in net/unix/af_unix.c in the Linux kernel before 4.3.3 allows local users to b...

Use-after-free vulnerability in net/unix/af_unix.c in the Linux kernel before 4.3.3 allows local users to bypass intended AF_UNIX socket permissions or cause a denial of service (panic) via crafted epoll_ctl calls.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 18:09 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2013-7446 is a Linux kernel memory-safety flaw. A local user could use crafted epoll_ctl activity against AF_UNIX sockets to bypass intended socket permissions or crash the system. The sources point to fixes in Linux before 4.3.3 and vendor kernel advisories, but do not provide a CVSS score. Exposure is mainly older Linux systems or vendor kernels that did not receive the relevant backport. Risk is higher on shared hosts, multi-user servers, and systems running untrusted local workloads. Internet exposure alone is not indicated by the provided sources. Treat this as a patch-management priority for legacy Linux estates, not an emergency internet-facing incident based on current evidence. It can still cause business disruption through local denial of service on shared systems. Mitigation focus: Update to Linux kernel 4.3.3 or a vendor kernel containing the backported fix.; Follow applicable SUSE or Ubuntu advisory guidance for affected distribution packages.; Prioritize shared, multi-user, and untrusted workload systems for kernel remediation..

Prepared: Jun 13, 2026, 21:26 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Dec 28, 2015, 11:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

6Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://groups.google.com/forum/#%21topic/syzkaller/3twDUI4Cpm8CVE reference · x_refsource_CONFIRM
https://forums.grsecurity.net/viewtopic.php?f=3&t=4150CVE reference · x_refsource_MISC
[linux-kernel] 20150913 List corruption on epoll_ctl(EPOLL_CTL_DEL) an AF_UNIX socketCVE reference · mailing-list, x_refsource_MLIST
[linux-kernel] 20140515 eventpoll __list_del_entry corruption (was: perf: use after free in perf_remove_from_context)CVE reference · mailing-list, x_refsource_MLIST
https://bugzilla.redhat.com/show_bug.cgi?id=1282688CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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