High 8.8Published Jul 17, 2011

CVE-2011-2692The png_handle_sCAL function in pngrutil.c in libpng 1.0.x before 1.0.55, 1.2.x before 1.2.45, 1.4.x before 1.4.8, and 1.5.x before 1.5.4 does not properly handle invalid sCAL chunks, which allows re…

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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The png_handle_sCAL function in pngrutil.c in libpng 1.0.x before 1.0.55, 1.2.x before 1.2.45, 1.4.x before 1.4.8, and 1.5.x before 1.5.4 does not properly handle invalid sCAL chunks, which allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly have unspecified other impact via a crafted PNG image that triggers the reading of uninitialized memory.

CVSS: 8.8 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-119
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

libpng libpng libpng:libpng	from 1.0.0 before 1.0.55; from 1.2.0 before 1.2.45; from 1.4.0 before 1.4.8; from 1.5.0 before 1.5.4	NVD
fedoraproject fedora fedoraproject:fedora	14	NVD
debian debian_linux debian:debian_linux	5.0; 6.0	NVD
canonical ubuntu_linux canonical:ubuntu_linux	8.04; 10.04; 10.10; 11.04	NVD

References

References

http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng/libpng%3Ba=commit%3Bh=61a2d8a2a7b03023e63eae9a3e64607aaaa6d339
http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html	mailing-list, third-party-advisory
http://lists.apple.com/archives/security-announce/2012/May/msg00001.html	mailing-list, third-party-advisory
http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063118.html	mailing-list, third-party-advisory
http://secunia.com/advisories/45046	broken-link
http://secunia.com/advisories/45405	broken-link
http://secunia.com/advisories/45415	broken-link
http://secunia.com/advisories/45445	broken-link
http://secunia.com/advisories/45460	broken-link
http://secunia.com/advisories/45461	broken-link
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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.