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TI-2008-04206 Aliases CVE-2008-4409GHSA-34h5-p5c9-pjw6

libxml2 2.7.0 and 2.7.1 does not properly handle "predefined entities definitions" in…

Priority LOW 34CWE-399Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Partial
Fix status
No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-399 and the CVSS impact.

Summary

libxml2 2.7.0 and 2.7.1 does not properly handle "predefined entities definitions" in entities, which allows context-dependent attackers to cause a denial of service (memory consumption and application crash), as demonstrated by use of xmllint on a certain XML document, a different vulnerability than CVE-2003-1564 and CVE-2008-3281.

Why it matters now

EPSS 0.08534 95th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:xmlsoft:libxml2:2.7.0:*:*:*:*:*:*:*2.7.0Vulnerablexmlsoft
cpe:2.3:a:xmlsoft:libxml2:2.7.1:*:*:*:*:*:*:*2.7.1Vulnerablexmlsoft
  • cpe:2.3:a:xmlsoft:libxml2:2.7.0:*:*:*:*:*:*:* Versions 2.7.0 Vulnerable ·xmlsoft
  • cpe:2.3:a:xmlsoft:libxml2:2.7.1:*:*:*:*:*:*:* Versions 2.7.1 Vulnerable ·xmlsoft

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2008-4409
  2. 2026-10-03 Alias added: GHSA-34h5-p5c9-pjw6
  3. 2026-10-18 EPSS moved to the 95th–99th percentile

References

Exploit 1

Advisory 6

Other 5

  • TI-2020-06117 xmlStringLenDecodeEntities in parser.c in libxml2 2.9.10 has an infinite loop in a certain end-of-file situation. CVSS 3.1HIGH 7.5
  • TI-2025-05441 Libxml2: integer overflow in xmlbuildqname() leads to stack buffer overflow in libxml2 CVSS 3.1HIGH 7.5
  • TI-2024-22792 An issue was discovered in xmllint (from libxml2) before 2.11.8 and 2.12.x before 2.12.7. CVSS 3.1HIGH 7.5
  • TI-2017-06514 libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a heap-based buffer over-read in the… CVSS 3.1HIGH 7.5
  • TI-2022-19140 An issue was discovered in libxml2 before 2.10.3. CVSS 3.1HIGH 7.5
  • TI-2025-23491 Out-of-bounds read in xmlsoft libxml2 CVSS 3.1HIGH 7.5
See all 114 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences