Buffer overflow in Cisco RoomOS - CVE-2026-20156
Published: July 17, 2026
Vulnerability identifier: #VU138378
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-2026-20156
CWE-ID: CWE-119
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 compromise the confidentiality, integrity, and availability of the system.
The vulnerability exists due to improper restriction of operations within the bounds of a memory buffer in Cisco RoomOS when processing crafted input. A remote user can send crafted input to compromise the confidentiality, integrity, and availability of the system.
How to mitigate CVE-2026-20156
Install security update from vendor's website.