Medium 5.0Published Aug 18, 2004

CVE-2004-0421The Portable Network Graphics library (libpng) 1.0.15 and earlier allows attackers to cause a denial of service (crash) via a malformed PNG image file that triggers an error that causes an out-of-bou…

Updated under an hour ago (Nov 2, 2026, 12:20 AM ET)

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The Portable Network Graphics library (libpng) 1.0.15 and earlier allows attackers to cause a denial of service (crash) via a malformed PNG image file that triggers an error that causes an out-of-bounds read when creating the error message.

CVSS: 5.0 MEDIUM (v2.0, NVD)AV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness (CWE): CWE-125
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	1.0.0; 1.0.5; 1.0.6; 1.0.7; 1.0.8; 1.0.9; 1.0.10; 1.0.11; and 9 more ranges	NVD
openpkg openpkg openpkg:openpkg	1.3; 2.0	NVD
redhat libpng redhat:libpng	1.2.2-16; 1.2.2-20	NVD
redhat enterprise_linux redhat:enterprise_linux	2.1; 3.0	NVD
redhat enterprise_linux_desktop redhat:enterprise_linux_desktop	3.0	NVD
trustix secure_linux trustix:secure_linux	2.0; 2.1	NVD

References

References

http://lists.apple.com/mhonarc/security-announce/msg00056.html	broken-link
http://marc.info/?l=bugtraq&m=108334922320309&w=2	mailing-list
http://marc.info/?l=bugtraq&m=108335030208523&w=2	mailing-list
http://marc.info/?l=fedora-announce-list&m=108451350029261&w=2	mailing-list
http://marc.info/?l=fedora-announce-list&m=108451353608968&w=2	mailing-list
http://secunia.com/advisories/22957	broken-link
http://secunia.com/advisories/22958	broken-link
http://www.debian.org/security/2004/dsa-498	broken-link
http://www.mandriva.com/security/advisories?name=MDKSA-2004:040	third-party-advisory
http://www.mandriva.com/security/advisories?name=MDKSA-2006:212	third-party-advisory
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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.