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CVE-2011-3336

38
FAUCET Score

CVE-2011-3336 describes a denial-of-service vulnerability in the regcomp function within the BSD implementation of libc, affecting products like Apple, FreeBSD, OpenBSD, and PHP. This flaw, rated 7.5 HIGH, allows an unauthenticated attacker to cause stack exhaustion, leading to a denial of service with low attack complexity. While not actively exploited in the wild and not on the KEV catalog, public exploit code exists (EDB-36288), though there is minimal community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.3.0, <= 5.3.10CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
>= 10.6.0, <= 10.7.2CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
8.2CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:8.2:-:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:o:openbsd:openbsd:5.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
6.49%
Probability of exploitation in next 30 days
EPSS Percentile
93.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
ExploitDB: EDB-36288 · Nov 4, 2011
This CVE's current EPSS score of 0.0649 is in the 88th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cxsecurity.com / issue/WLB-2011110082
ExploitThird Party Advisory
seclists.org / fulldisclosure/2014/Mar/166
ExploitMailing ListThird Party Advisory
securityfocus.com / archive/1/520390
ExploitThird Party AdvisoryVDB Entry
securityfocus.com / bid/50541
ExploitThird Party AdvisoryVDB Entry