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Vulnerability record · CVE-2009-2416 · published 11 August 2009

CVE-2009-2416: Xmlsoft libxml use after free vulnerability

Xmlsoft · Libxml

Multiple use-after-free vulnerabilities in libxml2 2.5.10, 2.6.16, 2.6.26, 2.6.27, and 2.6.32, and libxml 1.8.17, allow context-dependent attackers to cause a denial of service (application crash) via crafted (1) Notation or (2) Enumeration attribute types in an XML file, as demonstrated by the Codenomicon XML fuzzing framework.

6.5 CVSS 3.1 Medium EPSS 1.8% · top 22.3% CWE-416 · Use after free
6.5CVSS 3.1 base score, v2 4.3
1.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
19Affected product versions listed by NVD
72References
16 Jun 2026Last modified by NVD

Description

Multiple use-after-free vulnerabilities in libxml2 2.5.10, 2.6.16, 2.6.26, 2.6.27, and 2.6.32, and libxml 1.8.17, allow context-dependent attackers to cause a denial of service (application crash) via crafted (1) Notation or (2) Enumeration attribute types in an XML file, as demonstrated by the Codenomicon XML fuzzing framework.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected products

19 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 Release Notes
http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html Mailing List
http://lists.apple.com/archives/security-announce/2009/Nov/msg00001.html Mailing List
http://lists.apple.com/archives/security-announce/2010/Jun/msg00003.html Mailing List
http://lists.opensuse.org/opensuse-security-announce/2009-09/msg00001.html Mailing List
http://secunia.com/advisories/35036 Broken Link
http://secunia.com/advisories/36207 Broken Link
http://secunia.com/advisories/36338 Broken Link
http://secunia.com/advisories/36417 Broken Link
http://secunia.com/advisories/36631 Broken Link
http://secunia.com/advisories/37346 Broken Link
http://secunia.com/advisories/37471 Broken Link
http://support.apple.com/kb/HT3937 Third Party Advisory
http://support.apple.com/kb/HT3949 Third Party Advisory
http://support.apple.com/kb/HT4225 Third Party Advisory
http://www.cert.fi/en/reports/2009/vulnerability2009085.html Broken Link
http://www.codenomicon.com/labs/xml/ Broken Link
http://www.debian.org/security/2009/dsa-1859 Mailing ListPatch
http://www.mail-archive.com/debian-bugs-dist%40lists.debian.org/msg678527.html Patch
http://www.networkworld.com/columnists/2009/080509-xml-flaw.html Broken Link
http://www.openoffice.org/security/cves/CVE-2009-2414-2416.html Third Party Advisory
http://www.securityfocus.com/archive/1/507985/100/0/threaded Broken LinkThird Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/36010 Broken LinkThird Party AdvisoryVDB Entry
http://www.ubuntu.com/usn/USN-815-1 Third Party Advisory
http://www.vmware.com/security/advisories/VMSA-2009-0016.html Third Party Advisory
http://www.vupen.com/english/advisories/2009/2420 Broken Link
http://www.vupen.com/english/advisories/2009/3184 Broken Link
http://www.vupen.com/english/advisories/2009/3217 Broken Link
http://www.vupen.com/english/advisories/2009/3316 Broken Link
https://bugzilla.redhat.com/show_bug.cgi?id=515205 Issue TrackingPatch
https://git.gnome.org/browse/libxml2/commit/?id=489f9671e71cc44a97b23111b3126ac8a1e21a59 Patch
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7783 Broken Link
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9262 Broken Link
https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00537.html Mailing List
https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00547.html Mailing List
https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00642.html Mailing List
http://googlechromereleases.blogspot.com/2009/08/stable-update-security-fixes.html Release Notes
http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html Mailing List
http://lists.apple.com/archives/security-announce/2009/Nov/msg00001.html Mailing List
http://lists.apple.com/archives/security-announce/2010/Jun/msg00003.html Mailing List

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

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Source: NIST National Vulnerability Database (record CVE-2009-2416), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.