High 7.5Published Feb 12, 2020

CVE-2011-3336regcomp in the BSD implementation of libc is vulnerable to denial of service due to stack exhaustion.

Updated under an hour ago (Nov 2, 2026, 12:10 AM ET)

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No exploitation reported and no EPSS estimate yet.

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regcomp in the BSD implementation of libc is vulnerable to denial of service due to stack exhaustion.

CVSS: 7.5 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-400
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 16, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

php php php:php	from 5.3.0 through 5.3.10	NVD
apple mac_os_x apple:mac_os_x	from 10.6.0 through 10.7.2	NVD
freebsd freebsd freebsd:freebsd	8.2	NVD
openbsd openbsd openbsd:openbsd	5.0	NVD

References

References

http://seclists.org/fulldisclosure/2014/Mar/166	exploit, mailing-list, third-party-advisory
http://www.securityfocus.com/bid/50541	exploit, third-party-advisory, vdb-entry
https://cxsecurity.com/issue/WLB-2011110082	exploit, third-party-advisory
https://www.securityfocus.com/archive/1/520390	exploit, third-party-advisory, vdb-entry

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.