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 replay attacks via unspecified vectors.

Published: 2014-10-08 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2014-7203 is rated Moderate Risk (45.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.90%). EPSS rose +1.32% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2014-7203

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.58% 1.90% +1.32%
2 2025-03-31 0.68% 0.58% -0.10%
3 2025-03-30 — 0.68% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2014-7203

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2014-7203

OS Trackers for CVE-2014-7203

vendor priority summary link
debian not yet assigned CVE-2014-7203 not yet assigned priority: Debian including 1 source packages (zeromq3), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2014-7203
redhat medium — https://access.redhat.com/security/cve/CVE-2014-7203
suse medium CVE-2014-7203 severity moderate: SUSE including 260 source package names (amazon/suse-sles-15-sp1-chost-byos-v20210304-hvm-ssd-x86_64, amazon/suse-sles-15-sp1-chost-byos-v20220127-hvm-ssd-x86_64, …), 295 product×package rows across 39 product lines (SUSE Enterprise Storage 1, SUSE Linux Enterprise Desktop 12, … (39 product lines)): Known Affected 231, Fixed 53, Known Not Affected 11. https://www.suse.com/security/cve/CVE-2014-7203/
ubuntu medium CVE-2014-7203 medium priority: Ubuntu including 2 source packages (zeromq, zeromq3), 24 status rows across 12 suites (artful, bionic, lucid, precise, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): not-affected 9, DNE 7, ignored 5, needs-triage 2, released 1. https://ubuntu.com/security/CVE-2014-7203

Affected software / configurations for CVE-2014-7203

Vendor Product Version Raw CPE
zeromq zeromq 4.0.0 cpe:2.3:a:zeromq:zeromq:4.0.0:*:*:*:*:*:*:*
zeromq zeromq 4.0.1 cpe:2.3:a:zeromq:zeromq:4.0.1:*:*:*:*:*:*:*
zeromq zeromq 4.0.2 cpe:2.3:a:zeromq:zeromq:4.0.2:*:*:*:*:*:*:*
zeromq zeromq 4.0.3 cpe:2.3:a:zeromq:zeromq:4.0.3:*:*:*:*:*:*:*
zeromq zeromq 4.0.4 cpe:2.3:a:zeromq:zeromq:4.0.4:*:*:*:*:*:*:*

References for CVE-2014-7203

cvelogic Threat Intelligence