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Fencer Intel
high 7.5

CVE-2011-3336 json

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

published 2020-02-12 6 y ago modified 2026-06-16 4 mo ago also EUVD-2011-3300

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.5%
EPSS 6.5% chance of exploitation in 30 days, percentile 93%
public exploits
1
Exploit-DB

Summary

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

Timeline

  1. First public exploit (EDB-36288)
  2. Published

Exploit prediction

6.49% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-36288 Libc - 'regcomp()' Stack Exhaustion Denial of Service dos, 2011-11-04
  • seclists.org http://seclists.org/fulldisclosure/2014/Mar/166 referenced PoC, tagged "exploit" by a source, unverified
  • securityfocus.com http://www.securityfocus.com/bid/50541 referenced PoC, tagged "exploit" by a source, unverified
  • securityfocus.com https://www.securityfocus.com/archive/1/520390 referenced PoC, tagged "exploit" by a source, unverified
  • cxsecurity.com https://cxsecurity.com/issue/WLB-2011110082 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C

Affected products

  • Apple macOS

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.