Vulnerability · Published Jul 15, 2026 · Assigned by cisco
CVE-2026-20156Cisco RoomOS Security Hardening Release - Buffer Management Vulnerabilities
High 8.1
In plain English
A high-severity memory corruption in Cisco RoomOS Software from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities).
Official description
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco RoomOS engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20156 are related to improper restriction of operations within the bounds of a memory buffer that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-119.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Cisco RoomOS Software | RoomOS 10.11.2.2RoomOS 10.15.2.2RoomOS 11.5.4.6RoomOS 11.5.2.4RoomOS 10.8.2.5RoomOS 10.11.5.2RoomOS 10.11.3.0RoomOS 10.15.5.3 |
Weakness: CWE-119 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H