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CVE-2014-7203
libzmq (aka ZeroMQ/C++) 4.0.x before 4.0.5 does not ensure that nonces are unique, which allows man-in-the-middle attackers to conduct…
- 4.3MediumCVSS base score
- 1.9%Exploitation in 30 daysEPSS · top 20% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
libzmq (aka ZeroMQ/C++) 4.0.x before 4.0.5 does not ensure that nonces are unique, which allows man-in-the-middle attackers to conduct replay attacks via unspecified vectors.
Timeline
ID reserved
By mitre
- 12 days later
· 12 days later
Published
- 10 years later
· 10 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 | Medium4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
- EPSS (exploitation in 30 days)
- 1.9% · top 20% of all CVEs (10 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.
Affected products
n/a
- affected n/a
References
9
- [oss-security] 20140927 Re: CVE request: zeromq (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- openSUSE-SU-2014:1381 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- https://github.com/zeromq/libzmq/pull/1189 (opens in a new tab)x_refsource_CONFIRMx_transferred
- openSUSE-SU-2014:1493 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 70157 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- zeromq-connection-nonces-replay(96242) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- [oss-security] 20140926 CVE request: zeromq (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://github.com/zeromq/libzmq/issues/1191 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 62262 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_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-2014-7077 (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-2014-7203)Record last updated .