libzmq (aka ZeroMQ/C++) 4.0.x before 4.0.5 does not ensure that nonces are unique, which…
Priority LOW 24Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- —
- Confidentiality · integrity · availability
- None · Partial · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
EPSS 0.019 79th percentileScored 2026-11-07
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:zeromq:zeromq:4.0.0:*:*:*:*:*:*:* | 4.0.0 | Vulnerable | zeromq |
| cpe:2.3:a:zeromq:zeromq:4.0.1:*:*:*:*:*:*:* | 4.0.1 | Vulnerable | zeromq |
| cpe:2.3:a:zeromq:zeromq:4.0.2:*:*:*:*:*:*:* | 4.0.2 | Vulnerable | zeromq |
| cpe:2.3:a:zeromq:zeromq:4.0.3:*:*:*:*:*:*:* | 4.0.3 | Vulnerable | zeromq |
| cpe:2.3:a:zeromq:zeromq:4.0.4:*:*:*:*:*:*:* | 4.0.4 | Vulnerable | zeromq |
- cpe:2.3:a:zeromq:zeromq:4.0.0:*:*:*:*:*:*:* Versions 4.0.0 Vulnerable ·zeromq
- cpe:2.3:a:zeromq:zeromq:4.0.1:*:*:*:*:*:*:* Versions 4.0.1 Vulnerable ·zeromq
- cpe:2.3:a:zeromq:zeromq:4.0.2:*:*:*:*:*:*:* Versions 4.0.2 Vulnerable ·zeromq
- cpe:2.3:a:zeromq:zeromq:4.0.3:*:*:*:*:*:*:* Versions 4.0.3 Vulnerable ·zeromq
- cpe:2.3:a:zeromq:zeromq:4.0.4:*:*:*:*:*:*:* Versions 4.0.4 Vulnerable ·zeromq
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2014-7203
- 2026-10-03 Alias added: GHSA-56m5-7cj8-j73q
References
More Zeromq vulnerabilities
- TI-2021-03531 Buffer overflow in zeromq CVSS 3.1CRITICAL 9.8
- TI-2014-07905 libzmq before 4.0.6 and 4.1.x before 4.1.1 allows remote attackers to conduct downgrade… CVSS 2.0MEDIUM 4.3
- TI-2014-06002 stream_engine.cpp in libzmq (aka ZeroMQ/C++)) 4.0.5 before 4.0.5 allows man-in-the-middle… CVSS 2.0MEDIUM 4.3
Sources
- CVE-2014-7203 · CVE Program
- CVE-2014-7203 · NVD
- FIRST EPSS
- GHSA-56m5-7cj8-j73q · GitHub Advisory Database · CC BY 4.0
- CVE-2014-7203 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences