Improper Check or Handling of Exceptional Conditions in Cisco RoomOS - CVE-2026-20187
Published: July 17, 2026
Vulnerability identifier: #VU138381
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-20187
CWE-ID: CWE-703
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Cisco Systems, Inc
Affected software:
Cisco RoomOS
Cisco RoomOS
Detailed vulnerability description
The vulnerability allows a remote user to cause a denial of service.
The vulnerability exists due to improper handling of exceptional conditions in Cisco RoomOS when processing unexpected conditions. A remote user can trigger an exceptional condition to cause a denial of service.
How to mitigate CVE-2026-20187
Install security update from vendor's website.