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Vulnerability record · CVE-2011-0408 · published 18 January 2011

CVE-2011-0408: Libpng memory buffer overflow vulnerability

LLibpng · Libpng

pngrtran.c in libpng 1.5.x before 1.5.1 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted palette-based PNG image that triggers a buffer overflow, related to the png_do_expand_palette function, the png_do_rgb_to_gray function, and an integer underflow. NOTE: some of these details are obtained from third party information.

6.8 CVSS 2.0 Medium EPSS 5.6% · top 7.4% CWE-119 · Memory buffer overflow
6.8CVSS 2.0 base score
5.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
18References
16 Jun 2026Last modified by NVD

Description

pngrtran.c in libpng 1.5.x before 1.5.1 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted palette-based PNG image that triggers a buffer overflow, related to the png_do_expand_palette function, the png_do_rgb_to_gray function, and an integer underflow. NOTE: some of these details are obtained from third party information.

AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
ftp://ftp.simplesystems.org/pub/png-group/src/libpng-1.5.1beta01-1.5.0-diff.txt
ftp://ftp.simplesystems.org/pub/png-group/src/libpng-1.5.1beta01-README.txt
http://osvdb.org/70417
http://secunia.com/advisories/42863 Vendor Advisory
http://securitytracker.com/id?1024955
http://sourceforge.net/mailarchive/forum.php?thread_name=002b01cbb0e2%24ae636c80%240b2a4580%24%40acm.org&forum_name=png-
http://www.kb.cert.org/vuls/id/643140 US Government Resource
http://www.vupen.com/english/advisories/2011/0080 Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/64637
ftp://ftp.simplesystems.org/pub/png-group/src/libpng-1.5.1beta01-1.5.0-diff.txt
ftp://ftp.simplesystems.org/pub/png-group/src/libpng-1.5.1beta01-README.txt
http://osvdb.org/70417
http://secunia.com/advisories/42863 Vendor Advisory
http://securitytracker.com/id?1024955
http://sourceforge.net/mailarchive/forum.php?thread_name=002b01cbb0e2%24ae636c80%240b2a4580%24%40acm.org&forum_name=png-
http://www.kb.cert.org/vuls/id/643140 US Government Resource
http://www.vupen.com/english/advisories/2011/0080 Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/64637

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2011-0408), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.