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Vulnerability record · CVE-2009-2414 · published 11 August 2009

CVE-2009-2414: Xmlsoft libxml memory buffer overflow vulnerability

Xmlsoft · Libxml

Stack consumption vulnerability in libxml2 2.5.10, 2.6.16, 2.6.26, 2.6.27, and 2.6.32, and libxml 1.8.17, allows context-dependent attackers to cause a denial of service (application crash) via a large depth of element declarations in a DTD, related to a function recursion, as demonstrated by the Codenomicon XML fuzzing framework.

4.3 CVSS 2.0 Medium EPSS 3.1% · top 12.6% CWE-119 · Memory buffer overflow
4.3CVSS 2.0 base score
3.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
72References
16 Jun 2026Last modified by NVD

Description

Stack consumption vulnerability in libxml2 2.5.10, 2.6.16, 2.6.26, 2.6.27, and 2.6.32, and libxml 1.8.17, allows context-dependent attackers to cause a denial of service (application crash) via a large depth of element declarations in a DTD, related to a function recursion, as demonstrated by the Codenomicon XML fuzzing framework.

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

Affected products

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

References

LinkTags
http://googlechromereleases.blogspot.com/2009/08/stable-update-security-fixes.html
http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html
http://lists.apple.com/archives/security-announce/2009/Nov/msg00001.html
http://lists.apple.com/archives/security-announce/2010/Jun/msg00003.html
http://lists.opensuse.org/opensuse-security-announce/2009-09/msg00001.html
http://secunia.com/advisories/35036
http://secunia.com/advisories/36207
http://secunia.com/advisories/36338
http://secunia.com/advisories/36417
http://secunia.com/advisories/36631
http://secunia.com/advisories/37346
http://secunia.com/advisories/37471
http://support.apple.com/kb/HT3937
http://support.apple.com/kb/HT3949
http://support.apple.com/kb/HT4225
http://www.cert.fi/en/reports/2009/vulnerability2009085.html
http://www.codenomicon.com/labs/xml/
http://www.debian.org/security/2009/dsa-1859 Patch
http://www.mail-archive.com/debian-bugs-dist%40lists.debian.org/msg678527.html
http://www.networkworld.com/columnists/2009/080509-xml-flaw.html
http://www.openoffice.org/security/cves/CVE-2009-2414-2416.html
http://www.securityfocus.com/archive/1/507985/100/0/threaded
http://www.securityfocus.com/bid/36010
http://www.ubuntu.com/usn/USN-815-1
http://www.vmware.com/security/advisories/VMSA-2009-0016.html
http://www.vupen.com/english/advisories/2009/2420
http://www.vupen.com/english/advisories/2009/3184
http://www.vupen.com/english/advisories/2009/3217
http://www.vupen.com/english/advisories/2009/3316
https://bugzilla.redhat.com/show_bug.cgi?id=515195
https://git.gnome.org/browse/libxml2/commit/?id=489f9671e71cc44a97b23111b3126ac8a1e21a59
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10129
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8639
https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00537.html
https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00547.html
https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00642.html
http://googlechromereleases.blogspot.com/2009/08/stable-update-security-fixes.html
http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html
http://lists.apple.com/archives/security-announce/2009/Nov/msg00001.html
http://lists.apple.com/archives/security-announce/2010/Jun/msg00003.html

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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-2009-2414), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.