CVE-2011-2696

Integer overflow in libsndfile before 1.0.25 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted PARIS Audio Format (PAF) file that triggers a heap-based buffer overflow.

Published: 2011-07-27 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-2696 is rated Moderate Risk (61.4/100): CVSS Medium severity, with high exploitation likelihood (EPSS 8.92%, 92th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +1.88% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2011-2696

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-01-26 7.04% 8.92% +1.88%
2 2025-03-30 12.82% 7.04% -5.78%
3 2025-03-29 — 12.82% —

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-2696

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 6.4 [email protected]

Weakness enumeration for CVE-2011-2696

OS Trackers for CVE-2011-2696

vendor priority summary link
debian not yet assigned CVE-2011-2696 not yet assigned priority: Debian including 1 source packages (libsndfile), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2011-2696
gentoo normal CVE-2011-2696: 1 GLSA(s) (201312-14), 1 atom(s) (media-libs/libsndfile); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2011-2696
redhat medium — https://access.redhat.com/security/cve/CVE-2011-2696
suse medium — https://www.suse.com/security/cve/CVE-2011-2696/
ubuntu medium CVE-2011-2696 medium priority: Ubuntu including 1 source packages (libsndfile), 5 status rows across 5 suites (hardy, lucid, maverick, natty, upstream): released 4, ignored 1. https://ubuntu.com/security/CVE-2011-2696

Affected software / configurations for CVE-2011-2696

Vendor Product Version Raw CPE
mega-nerd libsndfile <= 1.0.24 cpe:2.3:a:mega-nerd:libsndfile:*:*:*:*:*:*:*:*
mega-nerd libsndfile 0.0.8 cpe:2.3:a:mega-nerd:libsndfile:0.0.8:*:*:*:*:*:*:*
mega-nerd libsndfile 0.0.28 cpe:2.3:a:mega-nerd:libsndfile:0.0.28:*:*:*:*:*:*:*
mega-nerd libsndfile 1.0.0 cpe:2.3:a:mega-nerd:libsndfile:1.0.0:*:*:*:*:*:*:*
mega-nerd libsndfile 1.0.0 cpe:2.3:a:mega-nerd:libsndfile:1.0.0:rc1:*:*:*:*:*:*
mega-nerd libsndfile 1.0.0 cpe:2.3:a:mega-nerd:libsndfile:1.0.0:rc6:*:*:*:*:*:*
mega-nerd libsndfile 1.0.1 cpe:2.3:a:mega-nerd:libsndfile:1.0.1:*:*:*:*:*:*:*
mega-nerd libsndfile 1.0.2 cpe:2.3:a:mega-nerd:libsndfile:1.0.2:*:*:*:*:*:*:*
mega-nerd libsndfile 1.0.3 cpe:2.3:a:mega-nerd:libsndfile:1.0.3:*:*:*:*:*:*:*
mega-nerd libsndfile 1.0.4 cpe:2.3:a:mega-nerd:libsndfile:1.0.4:*:*:*:*:*:*:*
mega-nerd libsndfile 1.0.5 cpe:2.3:a:mega-nerd:libsndfile:1.0.5:*:*:*:*:*:*:*
mega-nerd libsndfile 1.0.6 cpe:2.3:a:mega-nerd:libsndfile:1.0.6:*:*:*:*:*:*:*
mega-nerd libsndfile 1.0.7 cpe:2.3:a:mega-nerd:libsndfile:1.0.7:*:*:*:*:*:*:*
mega-nerd libsndfile 1.0.8 cpe:2.3:a:mega-nerd:libsndfile:1.0.8:*:*:*:*:*:*:*
mega-nerd libsndfile 1.0.9 cpe:2.3:a:mega-nerd:libsndfile:1.0.9:*:*:*:*:*:*:*
mega-nerd libsndfile 1.0.10 cpe:2.3:a:mega-nerd:libsndfile:1.0.10:*:*:*:*:*:*:*
mega-nerd libsndfile 1.0.11 cpe:2.3:a:mega-nerd:libsndfile:1.0.11:*:*:*:*:*:*:*
mega-nerd libsndfile 1.0.12 cpe:2.3:a:mega-nerd:libsndfile:1.0.12:*:*:*:*:*:*:*
mega-nerd libsndfile 1.0.13 cpe:2.3:a:mega-nerd:libsndfile:1.0.13:*:*:*:*:*:*:*
mega-nerd libsndfile 1.0.14 cpe:2.3:a:mega-nerd:libsndfile:1.0.14:*:*:*:*:*:*:*
mega-nerd libsndfile 1.0.15 cpe:2.3:a:mega-nerd:libsndfile:1.0.15:*:*:*:*:*:*:*
mega-nerd libsndfile 1.0.16 cpe:2.3:a:mega-nerd:libsndfile:1.0.16:*:*:*:*:*:*:*
mega-nerd libsndfile 1.0.17 cpe:2.3:a:mega-nerd:libsndfile:1.0.17:*:*:*:*:*:*:*
mega-nerd libsndfile 1.0.18 cpe:2.3:a:mega-nerd:libsndfile:1.0.18:*:*:*:*:*:*:*
mega-nerd libsndfile 1.0.19 cpe:2.3:a:mega-nerd:libsndfile:1.0.19:*:*:*:*:*:*:*
mega-nerd libsndfile 1.0.20 cpe:2.3:a:mega-nerd:libsndfile:1.0.20:*:*:*:*:*:*:*
mega-nerd libsndfile 1.0.21 cpe:2.3:a:mega-nerd:libsndfile:1.0.21:*:*:*:*:*:*:*
mega-nerd libsndfile 1.0.22 cpe:2.3:a:mega-nerd:libsndfile:1.0.22:*:*:*:*:*:*:*
mega-nerd libsndfile 1.0.23 cpe:2.3:a:mega-nerd:libsndfile:1.0.23:*:*:*:*:*:*:*

References for CVE-2011-2696

URL Tags
http://lists.fedoraproject.org/pipermail/package-announce/2011-July/062955.html
http://secunia.com/advisories/45125 Vendor Advisory
http://secunia.com/advisories/45351 Vendor Advisory
http://secunia.com/advisories/45384
http://secunia.com/advisories/45388
http://secunia.com/advisories/45433
http://www.debian.org/security/2011/dsa-2288
http://www.mandriva.com/security/advisories?name=MDVSA-2011:119
http://www.mega-nerd.com/libsndfile/ChangeLog
http://www.openwall.com/lists/oss-security/2011/07/14/1
http://www.openwall.com/lists/oss-security/2011/07/14/2
http://www.openwall.com/lists/oss-security/2011/07/14/3
http://www.openwall.com/lists/oss-security/2011/07/14/4
http://www.openwall.com/lists/oss-security/2011/07/15/1
http://www.openwall.com/lists/oss-security/2011/07/15/3
http://www.openwall.com/lists/oss-security/2011/07/15/4
http://www.openwall.com/lists/oss-security/2011/07/18/1
http://www.redhat.com/support/errata/RHSA-2011-1084.html
http://www.securelist.com/en/advisories/45125
http://www.securityfocus.com/bid/48644
http://www.ubuntu.com/usn/USN-1174-1
https://bugs.gentoo.org/show_bug.cgi?id=375125
https://bugzilla.redhat.com/show_bug.cgi?id=721234
https://hermes.opensuse.org/messages/10387521
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