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Fencer Vulns
critical 10.0

CVE-2004-0989 in the critical feed json

Multiple buffer overflows in libXML 2.6.12 and 2.6.13 (libxml2), and possibly other versions, may allow remote attackers to execute arbitra…

published 2004-10-28 22 y ago modified 2026-06-16 4 mo ago also EUVD-2004-0987

cvss
10.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
21.7%
EPSS 21.7% chance of exploitation in 30 days, percentile 97%
public exploits
1
Exploit-DB

Summary

Multiple buffer overflows in libXML 2.6.12 and 2.6.13 (libxml2), and possibly other versions, may allow remote attackers to execute arbitrary code via (1) a long FTP URL that is not properly handled by the xmlNanoFTPScanURL function, (2) a long proxy URL containing FTP data that is not properly handled by the xmlNanoFTPScanProxy function, and other overflows related to manipulation of DNS length values, including (3) xmlNanoFTPConnect, (4) xmlNanoHTTPConnectHost, and (5) xmlNanoHTTPConnectHost.

Patch / fix

  • libxml2 Debian 14, Debian 13, Debian 12 2.6.11-5

debian advisories DEBIAN-CVE-2004-0989

  • libxml RHEL 3 1:1.8.17-9.2
  • libxml2 RHEL 3 2.5.10-7
  • libxml2-python RHEL 3 2.5.10-7

red hat advisories RHSA-2004:650RHSA-2004:615

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-2004-0989 updated

libxml2 various overflows

  • Red Hat Desktop version 3 libxml2 2.5.10-7, libxml 1.8.17-9.2, libxml2-python 2.5.10-7 Red Hat Enterprise Linux AS version 3 libxml2 2.5.10-7, libxml 1.8.17-9.2, libxml2-python 2.5.10-7 Red Hat Enterprise Linux ES version 3 libxml2 2.5.10-7, libxml 1.8.17-9.2, libxml2-python 2.5.10-7 Red Hat Enterprise Linux WS version 3 libxml2 2.5.10-7, libxml 1.8.17-9.2, libxml2-python 2.5.10-7
    fixed: vendor fix RHSA-2004:650

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

Timeline

  1. First public exploit (EDB-24704)
  2. Published

Exploit prediction

21.69% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-24704 Libxml2 - Multiple Remote Stack Buffer Overflow Vulnerabilities remote, 2004-10-26
  • securityfocus.com http://www.securityfocus.com/bid/11526 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

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.