CVE-2004-2761
The MD5 Message-Digest Algorithm is not collision resistant, which makes it easier for context-dependent attackers to conduct spoofing…
- 9.8CriticalCVSS base score
- 10.1%Exploitation in 30 daysEPSS · top 4.3% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
Description
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.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list an Exploit-DB entry for it.
Show the exploits1
Exploit-DB1 entry
- MD5 - Message Digest Algorithm Hash Collision (Exploit-DB entry) (opens in a new tab)
EDB-ID 24807dos, multiplepublished 7 Dec 2004Verified
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By mitre
Published
- 17 years later
· 17 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 10.1% · top 4.3% of all CVEs (10 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Affected products
n/a
- affected n/a
References
26
- 33065 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- RHSA-2010:0837 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- http://www.phreedom.org/research/rogue-ca/ (opens in a new tab)x_refsource_MISCx_transferred
- VU#836068 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- 4866 (opens in a new tab)third-party-advisoryx_refsource_SREASONx_transferred
- http://blog.mozilla.com/security/2008/12/30/md5-weaknesses-could-lead-to-certificate-forgery/ (opens in a new tab)x_refsource_MISCx_transferred
- 20090115 MD5 Hashes May Allow for Certificate Spoofing (opens in a new tab)vendor-advisoryx_refsource_CISCOx_transferred
- http://www.win.tue.nl/hashclash/SoftIntCodeSign/ (opens in a new tab)x_refsource_MISCx_transferred
- 33826 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 34281 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://www.microsoft.com/technet/security/advisory/961509.mspx (opens in a new tab)x_refsource_MISCx_transferred
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03814en_us (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://blogs.technet.com/swi/archive/2008/12/30/information-regarding-md5-collisions-problem.aspx (opens in a new tab)x_refsource_MISCx_transferred
- http://www.doxpara.com/research/md5/md5_someday.pdf (opens in a new tab)x_refsource_MISCx_transferred
- https://ics-cert.us-cert.gov/advisories/ICSMA-18-058-02 (opens in a new tab)x_refsource_MISCx_transferred
- RHSA-2010:0838 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://blogs.verisign.com/ssl-blog/2008/12/on_md5_vulnerabilities_and_mit.php (opens in a new tab)x_refsource_MISCx_transferred
- USN-740-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- 1024697 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- FEDORA-2009-1276 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05336888 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 20081230 MD5 Considered Harmful Today: Creating a rogue CA certificate (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05289935 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 42181 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://www.win.tue.nl/hashclash/rogue-ca/ (opens in a new tab)x_refsource_MISCx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=648886 (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2004-2751 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2004-2761)Record last updated .