VULNERABILITY INTELLIGENCE
CVE-2014-9721
CVSS score4.3 MEDIUM
EPSS probability2.51%
CISA KEVNot currently listed
Published2015-06-03
Last modified2026-06-17
CVSS vectorAV:N/AC:M/Au:N/C:N/I:P/A:N
Description
libzmq before 4.0.6 and 4.1.x before 4.1.1 allows remote attackers to conduct downgrade attacks and bypass ZMTP v3 protocol security mechanisms via a ZMTP v2 or earlier header.
Weakness classification
- CWE-20: Improper Input Validation