HOMEVULNERABILITIESCVE-2009-2416
MEDIUM

CVE-2009-2416

CWE-416Published: August 11, 2009· Updated: Jun 16, 2026

6.5
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2009-2416 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.5.

From a weakness classification perspective (CWE-416): Use-after-free vulnerabilities involve accessing memory after it has been freed, often enabling arbitrary code execution.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected Vendors & Products

Apple4 product(s)
safariiphone osmac os xmac os x server
Canonical1 product(s)
ubuntu linux
Debian1 product(s)
debian linux
Fedora1 product(s)
fedora
Google1 product(s)
chrome
openSUSE1 product(s)
opensuse
Red Hat1 product(s)
enterprise linux
sun1 product(s)
openoffice.org
SUSE2 product(s)
linux enterpriselinux enterprise server
VMware4 product(s)
vcenter servervmaesxesxi
xmlsoft2 product(s)
libxmllibxml2
Source: NVD CPE · 33 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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Official Patches & Advisories

All References (72)

Quick Facts

CVE IDCVE-2009-2416
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-416
CISA KEVNo
Affected11 vendor(s)
PublishedAug 11, 2009

Related CVEs (CWE-416)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2009-2416 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.