CVE-2011-4594

MEDIUMNVD 5.55.5—Trending — 4 sources updated this week

5.5

The __sys_sendmsg function in net/socket.c in the Linux kernel before 3.1 allows local users to cause a denial of service (system crash) via crafted use of the sendmmsg system call, leading to an incorrect pointer dereference.

CVSS v3: 5.5
EG Score: 5.5(medium)
EPSS: 31.4%
KEV: Not listed

Published

May 17, 2012

Last Modified

April 29, 2026

Advisory Details (4)

Auto-updated May 29, 2026

Patch available. Sources: redhat, github_commit.

github_commit

commit bc909d9ddbf7 (torvalds/linux)

Fix landed in torvalds/linux commit bc909d9ddbf7 — awaiting tagged release

https://github.com/torvalds/linux/commit/bc909d9ddbf7778371e36a651d6e4194b1cc7d4c

redhat Patch Available

761646 – (CVE-2011-4594) CVE-2011-4594 kernel: send(m)msg: user pointer dereferences

Affected: Red Hat Enterprise Linux 6 via

https://bugzilla.redhat.com/show_bug.cgi?id=761646

generic

oss-security - Re: CVE Request -- kernel: send(m)msg: user pointer dereferences

http://www.openwall.com/lists/oss-security/2011/12/08/4

generic

http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1

Patch Availability(3)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	linux-image-3.0.0-13-powerpc-smp (3.0.0-13.22) @ oneiric	2026-05-29	ubuntu
ubuntu	linux-image-3.0.0-1206-omap4 (3.0.0-1206.12) @ oneiric	2026-05-29	ubuntu
redhat	kernel-0:2.6.32-220.7.1.el6	2012-03-06	redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-476NULL Pointer Dereference

All Vendor Advisories

(3)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 16× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:10 UTCepss_batch
2026-06-02 20:10 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-29 13:40 UTCepss_batch
2026-05-29 04:34 UTCEG score recompute
2026-05-29 04:34 UTCVendor advisory
2026-05-29 04:34 UTCGHSA enrichment
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 13:41 UTCepss_batch

Frequently asked(5)

What is CVE-2011-4594?

CVE-2011-4594 is a medium vulnerability published on May 17, 2012. The sys_sendmsg function in net/socket.c in the Linux kernel before 3.1 allows local users to cause a denial of service (system crash) via crafted use of the sendmmsg system call, leading to an incorrect pointer dereference.

When was CVE-2011-4594 disclosed?

CVE-2011-4594 was first published in the National Vulnerability Database on May 17, 2012, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2011-4594 actively exploited?

CVE-2011-4594 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 31.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2011-4594?

CVE-2011-4594 has a CVSS v3 base score of 5.5 (NVD).

How do I remediate CVE-2011-4594?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2011-4594, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2011-4594

Published

Last Modified

Advisory Details (4)

commit bc909d9ddbf7 (torvalds/linux)

761646 – (CVE-2011-4594) CVE-2011-4594 kernel: send(m)msg: user pointer dereferences

oss-security - Re: CVE Request -- kernel: send(m)msg: user pointer dereferences

Patch Availability(3)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2011-4594?

Same vendor

Same CWE

CVE-2011-4594

📅 Published

🔄 Last Modified

📋 Advisory Details (4)

commit bc909d9ddbf7 (torvalds/linux)

761646 – (CVE-2011-4594) CVE-2011-4594 kernel: send(m)msg: user pointer dereferences

oss-security - Re: CVE Request -- kernel: send(m)msg: user pointer dereferences

Patch Availability(3)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2011-4594?

🔗 Related CVEs(same vendor + same CWE)

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Published

Last Modified

Advisory Details (4)

Frequently asked(5)

Related CVEs(same vendor + same CWE)