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CVE-2014-8242
librsync before 1.0.0 uses a truncated MD4 checksum to match blocks, which makes it easier for remote attackers to modify transmitted data…
- 5.8MediumCVSS base score
- 2.9%Exploitation in 30 daysEPSS · top 13% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
librsync before 1.0.0 uses a truncated MD4 checksum to match blocks, which makes it easier for remote attackers to modify transmitted data via a birthday attack.
Timeline
ID reserved
By mitre
- 13 months later
· 13 months later
Published
- 9 years later
· 9 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 |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.8 | AV:N/AC:M/Au:N/C:N/I:P/A:P |
- EPSS (exploitation in 30 days)
- 2.9% · top 13% of all CVEs (11 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.8.
Affected products
n/a
- affected n/a
References
References12
- FEDORA-2015-3366 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- openSUSE-SU-2015:1752 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- [oss-security] 20140805 [CVE Requests] rsync and librsync collisions (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- FEDORA-2015-3497 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- [oss-security] 20140728 rsync vulnerable to collisions (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- GLSA-201605-04 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- https://github.com/librsync/librsync/issues/5 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20141012 Re: [CVE Requests] rsync and librsync collisions (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://www.miknet.net/security/optimizing-birthday-attack/ (opens in a new tab)x_refsource_MISCx_transferred
- FEDORA-2015-2923 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- https://github.com/librsync/librsync/releases/tag/v1.0.0 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=1126712 (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-2014-8083 (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-2014-8242)Record last updated .