Security readout for executives and security teams
This issue affects older libzmq versions and could let a remote party force weaker protocol behavior, bypassing ZMTP v3 security protections. There is no cited evidence of active exploitation, but affected messaging services should be upgraded because the issue undermines intended transport security. Exposure is most likely in applications or services using ZeroMQ/libzmq versions before 4.0.6 or 4.1.1, especially where peers communicate across untrusted networks and depend on ZMTP v3 security behavior. Handle during normal vulnerability remediation, with higher priority for systems exposing ZeroMQ messaging to untrusted networks or relying on ZMTP security controls. Mitigation focus: Inventory applications that bundle or dynamically link ZeroMQ/libzmq.; Upgrade libzmq to 4.0.6, 4.1.1, or later supported vendor packages.; Prioritize exposed or untrusted-network messaging endpoints using ZMTP security..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CVE-2014-9721 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/zeromq/zeromq4-x/commit/b6e3e0f601e2c1ec1f3aac880ed6a3fe63043e51CVE reference · x_refsource_CONFIRM
- https://github.com/zeromq/libzmq/issues/1273CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
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