VULNERABILITY INTELLIGENCE
CVE-2015-4316
CVSS score5.5 MEDIUM
EPSS probability1.89%
CISA KEVNot currently listed
Published2015-08-20
Last modified2026-06-17
CVSS vectorAV:N/AC:L/Au:S/C:P/I:N/A:P
Description
The Mobile and Remote Access (MRA) endpoint-validation feature in Cisco TelePresence Video Communication Server (VCS) Expressway X8.5.2 improperly validates the phone line used for registration, which allows remote authenticated users to conduct impersonation attacks via a crafted registration, aka Bug ID CSCuv40396.
Weakness classification
- CWE-20: Improper Input Validation