Is CVE-2004-0421 being actively exploited?

CVE-2004-0421 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2004-0421?

CVE-2004-0421 has a CVSS 2.0 base score of 5.0 (MEDIUM).

CVE-2004-0421

MEDIUM · CVSS 5.0EPSS 4.1%EU EUVD

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.

Key facts

CVSS score: 5.0 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness (CWE): CWE-125
EPSS score: 4.1% (91th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2004-0420)
Published: August 18, 2004
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2004-0420 in the EU Vulnerability Database. Last updated in EUVD on August 8, 2024.

View on the EU Vulnerability Database

Affected products

libpng / libpng
libpng / libpng
libpng / libpng
libpng / libpng
libpng / libpng
libpng / libpng
libpng / libpng
libpng / libpng
libpng / libpng
libpng / libpng
libpng / libpng
libpng / libpng
libpng / libpng
libpng / libpng
libpng / libpng
libpng / libpng
libpng / libpng
openpkg / openpkg
openpkg / openpkg
redhat / enterprise linux
redhat / enterprise linux
redhat / enterprise linux desktop
redhat / libpng
redhat / libpng
trustix / secure linux
trustix / secure linux

Certified products that may be affected

3 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

Red Hat Enterprise Linux Version 4 Update 2 AS & Red Hat Enterprise Linux Version 4 Update 2 WS - Red Hat, Inc. - Common Criteria CCEVS-VR-0020-2006 - archived
Red Hat Enterprise Linux WS, Version 3 Update 2 - Red Hat, Inc. - Common Criteria BSI-DSZ-CC-0259-2004 - archived
Red Hat Enterprise Linux AS, Version 3 Update 2 - Red Hat, Inc. - Common Criteria BSI-DSZ-CC-0257-2004 - archived

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)
http://www.mandriva.com/security/advisories?name=MDKSA-2006:213(Third Party Advisory)
http://www.redhat.com/support/errata/RHSA-2004-180.html(Broken Link, Patch, Vendor Advisory)
http://www.redhat.com/support/errata/RHSA-2004-181.html(Broken Link)
http://www.securityfocus.com/bid/10244(Broken Link, Patch, Third Party Advisory, VDB Entry, Vendor Advisory)
https://exchange.xforce.ibmcloud.com/vulnerabilities/16022(Broken Link, VDB Entry)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11710(Broken Link)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A971(Broken Link)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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