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Fencer Vulns
medium 4.3

CVE-2009-2414 json

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 attacker…

published 2009-08-11 17 y ago modified 2026-06-16 4 mo ago also EUVD-2009-2410

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.1%
EPSS 3.1% chance of exploitation in 30 days, percentile 87%
public exploits
0
none known

Summary

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.

Patch / fix

  • libxml2 Debian 14, Debian 13, Debian 12 2.7.3.dfsg-2.1

debian advisories DEBIAN-CVE-2009-2414

  • libxml RHEL 3 1:1.8.17-9.3
  • libxml2 RHEL 3 2.5.10-15
  • libxml2 RHEL 4 2.6.16-12.7
  • libxml2 RHEL 5 2.6.26-2.1.2.8
  • libxml2-python RHEL 3 2.5.10-15
  • libxml2-python RHEL 4 2.6.16-12.7
  • libxml2-python RHEL 5 2.6.26-2.1.2.8

red hat advisories RHSA-2009:1206

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2009-2414 updated cvss 4.3

mingw32-libxml2: Stack overflow by parsing root XML element DTD definition

  • Red Hat Desktop version 3 libxml 1.8.17-9.3, libxml2 2.5.10-15, libxml2-python 2.5.10-15 Red Hat Enterprise Linux (v. 5 server) libxml2 2.6.26-2.1.2.8, libxml2-python 2.6.26-2.1.2.8 Red Hat Enterprise Linux AS version 3 libxml 1.8.17-9.3, libxml2 2.5.10-15, libxml2-python 2.5.10-15 Red Hat Enterprise Linux AS version 4 libxml2 2.6.16-12.7, libxml2-python 2.6.16-12.7 Red Hat Enterprise Linux Desktop (v. 5 client) libxml2 2.6.26-2.1.2.8, libxml2-python 2.6.26-2.1.2.8 Red Hat Enterprise Linux Desktop version 4 libxml2 2.6.16-12.7, libxml2-python 2.6.16-12.7
    +5 more products
    Red Hat Enterprise Linux Desktop Workstation (v. 5 client) libxml2 2.6.26-2.1.2.8, libxml2-python 2.6.26-2.1.2.8 Red Hat Enterprise Linux ES version 3 libxml 1.8.17-9.3, libxml2 2.5.10-15, libxml2-python 2.5.10-15 Red Hat Enterprise Linux ES version 4 libxml2 2.6.16-12.7, libxml2-python 2.6.16-12.7 Red Hat Enterprise Linux WS version 3 libxml 1.8.17-9.3, libxml2 2.5.10-15, libxml2-python 2.5.10-15 Red Hat Enterprise Linux WS version 4 libxml2 2.6.16-12.7, libxml2-python 2.6.16-12.7
    fixed: vendor fix RHSA-2009:1206

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.14% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.