Lyrie
Critical CVE
CVSS 9.83 sources verified·1 min read
By Lyrie Threat Intelligence·5/28/2026

CRITICAL: CVE-2004-2761 (CVSS 9.8) — ietf md5

CVE: CVE-2004-2761

CVSS: 9.8 (3.1) — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: CRITICAL

Status: Critical advisory

Affected

  • ietf md5
  • ietf x.509 certificate

Summary

The MD5 Message-Digest Algorithm is not collision resistant, which makes it easier for context-dependent attackers to conduct spoofing attacks, as demonstrated by attacks on the use of MD5 in the signature algorithm of an X.509 certificate.

Verified Sources

References

  • http://blog.mozilla.com/security/2008/12/30/md5-weaknesses-could-lead-to-certificate-forgery/
  • http://blogs.technet.com/swi/archive/2008/12/30/information-regarding-md5-collisions-problem.aspx
  • http://secunia.com/advisories/33826
  • http://secunia.com/advisories/34281
  • http://secunia.com/advisories/42181
  • http://securityreason.com/securityalert/4866
  • http://securitytracker.com/id?1024697
  • http://www.cisco.com/en/US/products/products_security_response09186a0080a5d24a.html
  • http://www.doxpara.com/research/md5/md5_someday.pdf
  • http://www.kb.cert.org/vuls/id/836068

_Validated by the Lyrie Threat Intelligence Pipeline — 3 independent sources confirmed before publication. No speculation._

Lyrie Verdict

A vulnerability of this severity is exactly what Lyrie's anti-rogue-AI defense is built for: continuous, autonomous monitoring that doesn't wait for human reaction time.

Validated sources

  1. [1]NVD
  2. [2]GitHub Advisory
  3. [3]MITRE