When was CVE-2011-4621 disclosed?

CVE-2011-4621 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-2011-4621 actively exploited?

CVE-2011-4621 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 19.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2011-4621?

CVE-2011-4621 has a CVSS v3 base score of 5.5 (NVD).

How do I remediate CVE-2011-4621?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2011-4621, 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.

CVE-2011-4621

MEDIUMNVD 5.5

5.5

The Linux kernel before 2.6.37 does not properly implement a certain clock-update optimization, which allows local users to cause a denial of service (system hang) via an application that executes code in a loop.

CVSS v3: 5.5
EG Score: —
EPSS: 19.9%
KEV: Not listed

References (10)

secalert@redhathttp://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.37
secalert@redhathttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f26f9aff6aaf67e9a430d16c266f91b13a5bff64
secalert@redhathttp://www.openwall.com/lists/oss-security/2011/12/21/6
secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=769711
secalert@redhathttps://github.com/torvalds/linux/commit/f26f9aff6aaf67e9a430d16c266f91b13a5bff64
af854a3a-2127-422b-91ae-364da2661108http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.37
af854a3a-2127-422b-91ae-364da2661108http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f26f9aff6aaf67e9a430d16c266f91b13a5bff64
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2011/12/21/6
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=769711
af854a3a-2127-422b-91ae-364da2661108https://github.com/torvalds/linux/commit/f26f9aff6aaf67e9a430d16c266f91b13a5bff64

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CVE-2011-4621

Published

Last Modified

References (10)

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2011-4621?

CVE-2011-4621

📅 Published

🔄 Last Modified

🔗 References (10)

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2011-4621?

Published

Last Modified

References (10)

Frequently asked(5)