VULNERABILITY INTELLIGENCE
CVE-2012-6399
CVSS score5.8 MEDIUM
EPSS probability0.53%
CISA KEVNot currently listed
Published2013-05-27
Last modified2026-06-16
CVSS vectorAV:N/AC:M/Au:N/C:P/I:P/A:N
Description
Cisco WebEx 4.1 on iOS does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate, aka Bug ID CSCud94176.
Weakness classification
- CWE-20: Improper Input Validation
Primary references
- psirt@cisco.com — Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory