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.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected products
- Cisco / Cisco RoomOS SoftwareRoomOS 10.11.2.2 – RoomOS 10.11.2.2
- Cisco / Cisco RoomOS SoftwareRoomOS 10.15.2.2 – RoomOS 10.15.2.2
- Cisco / Cisco RoomOS SoftwareRoomOS 11.5.4.6 – RoomOS 11.5.4.6
- Cisco / Cisco RoomOS SoftwareRoomOS 11.5.2.4 – RoomOS 11.5.2.4
- Cisco / Cisco RoomOS SoftwareRoomOS 10.8.2.5 – RoomOS 10.8.2.5
- Cisco / Cisco RoomOS SoftwareRoomOS 10.11.5.2 – RoomOS 10.11.5.2
- Cisco / Cisco RoomOS SoftwareRoomOS 10.11.3.0 – RoomOS 10.11.3.0
- Cisco / Cisco RoomOS SoftwareRoomOS 10.15.5.3 – RoomOS 10.15.5.3
- Cisco / Cisco RoomOS SoftwareRoomOS 10.19.2.2 – RoomOS 10.19.2.2
- Cisco / Cisco RoomOS SoftwareRoomOS 11.1.3.1 – RoomOS 11.1.3.1
- Cisco / Cisco RoomOS SoftwareRoomOS 10.11.6.0 – RoomOS 10.11.6.0
- Cisco / Cisco RoomOS SoftwareRoomOS 10.19.3.0 – RoomOS 10.19.3.0
- Cisco / Cisco RoomOS SoftwareRoomOS 10.19.4.2 – RoomOS 10.19.4.2
- Cisco / Cisco RoomOS SoftwareRoomOS 10.3.2.4 – RoomOS 10.3.2.4
- Cisco / Cisco RoomOS SoftwareRoomOS 10.3.4.0 – RoomOS 10.3.4.0
- Cisco / Cisco RoomOS SoftwareRoomOS 10.15.3.0 – RoomOS 10.15.3.0
- Cisco / Cisco RoomOS SoftwareRoomOS 11.1.4.1 – RoomOS 11.1.4.1
- Cisco / Cisco RoomOS SoftwareRoomOS 11.14.2.3 – RoomOS 11.14.2.3
- Cisco / Cisco RoomOS SoftwareRoomOS 11.1.2.4 – RoomOS 11.1.2.4
- Cisco / Cisco RoomOS SoftwareRoomOS 10.8.3.1 – RoomOS 10.8.3.1
- Cisco / Cisco RoomOS SoftwareRoomOS 11.14.2.1 – RoomOS 11.14.2.1
- Cisco / Cisco RoomOS SoftwareRoomOS 10.3.3.0 – RoomOS 10.3.3.0
- Cisco / Cisco RoomOS SoftwareRoomOS 10.8.4.0 – RoomOS 10.8.4.0
- Cisco / Cisco RoomOS SoftwareRoomOS 10.15.4.1 – RoomOS 10.15.4.1
- Cisco / Cisco RoomOS SoftwareRoomOS 10.19.5.6 – RoomOS 10.19.5.6
- Cisco / Cisco RoomOS SoftwareRoomOS 10.11.4.1 – RoomOS 10.11.4.1
- Cisco / Cisco RoomOS SoftwareRoomOS 11.9.3.1 – RoomOS 11.9.3.1
- Cisco / Cisco RoomOS SoftwareRoomOS 11.5.3.3 – RoomOS 11.5.3.3
- Cisco / Cisco RoomOS SoftwareRoomOS 10.3.2.0 – RoomOS 10.3.2.0
- Cisco / Cisco RoomOS SoftwareRoomOS 11.9.2.4 – RoomOS 11.9.2.4
- Cisco / Cisco RoomOS SoftwareRoomOS 11.14.3.0 – RoomOS 11.14.3.0
- Cisco / Cisco RoomOS SoftwareRoomOS 11.17.2.2 – RoomOS 11.17.2.2
- Cisco / Cisco RoomOS SoftwareRoomOS 11.14.4.0 – RoomOS 11.14.4.0
- Cisco / Cisco RoomOS SoftwareRoomOS 10.19 StepUpg – RoomOS 10.19 StepUpg
- Cisco / Cisco RoomOS SoftwareRoomOS 11.17.3.0 – RoomOS 11.17.3.0
- Cisco / Cisco RoomOS SoftwareRoomOS 11.20.2.3 – RoomOS 11.20.2.3
- Cisco / Cisco RoomOS SoftwareRoomOS 11.14.5.0 – RoomOS 11.14.5.0
- Cisco / Cisco RoomOS SoftwareRoomOS 11.17.4.0 – RoomOS 11.17.4.0
- Cisco / Cisco RoomOS SoftwareRoomOS 11.20.3.0 – RoomOS 11.20.3.0
- Cisco / Cisco RoomOS SoftwareRoomOS 11.23.1.6 – RoomOS 11.23.1.6
- Cisco / Cisco RoomOS SoftwareRoomOS 11.23.1.8 – RoomOS 11.23.1.8
- Cisco / Cisco RoomOS SoftwareRoomOS 11.24.1.5 – RoomOS 11.24.1.5
- Cisco / Cisco RoomOS SoftwareRoomOS 11.24.2.4 – RoomOS 11.24.2.4
- Cisco / Cisco RoomOS SoftwareRoomOS 11.24.3.0 – RoomOS 11.24.3.0
- Cisco / Cisco RoomOS SoftwareRoomOS 11.24.4.1 – RoomOS 11.24.4.1
- Cisco / Cisco RoomOS SoftwareRoomOS 11.27.2.0 – RoomOS 11.27.2.0
- Cisco / Cisco RoomOS SoftwareRoomOS 11.28.1.3 – RoomOS 11.28.1.3
- Cisco / Cisco RoomOS SoftwareRoomOS 11.27.3.0 – RoomOS 11.27.3.0
- Cisco / Cisco RoomOS SoftwareRoomOS 11.31.1.5 – RoomOS 11.31.1.5
- Cisco / Cisco RoomOS SoftwareRoomOS 11.27.4.0 – RoomOS 11.27.4.0
- Cisco / Cisco RoomOS SoftwareRoomOS 11.32.2.1 – RoomOS 11.32.2.1
- Cisco / Cisco RoomOS SoftwareRoomOS 11.33.1.7 – RoomOS 11.33.1.7
- Cisco / Cisco RoomOS SoftwareRoomOS 26.0.1.2 – RoomOS 26.0.1.2
- Cisco / Cisco RoomOS SoftwareRoomOS 11.34.1.2 – RoomOS 11.34.1.2
- Cisco / Cisco RoomOS SoftwareRoomOS 11.32.3.0 – RoomOS 11.32.3.0
- Cisco / Cisco RoomOS SoftwareRoomOS 11.27.5.0 – RoomOS 11.27.5.0
- Cisco / Cisco RoomOS SoftwareRoomOS 11.32.4.0 – RoomOS 11.32.4.0
- Cisco / Cisco RoomOS SoftwareRoomOS 26.1.1.5 – RoomOS 26.1.1.5
- Cisco / Cisco RoomOS SoftwareRoomOS 11.35.1.2 – RoomOS 11.35.1.2
- Cisco / Cisco RoomOS SoftwareRoomOS 26.2.2.2 – RoomOS 26.2.2.2
- Cisco / Cisco RoomOS SoftwareRoomOS 11.32.5.1 – RoomOS 11.32.5.1
- Cisco / Cisco RoomOS SoftwareRoomOS 26.4.1.6 – RoomOS 26.4.1.6
- Cisco / Cisco RoomOS SoftwareRoomOS 26.4.1.4 – RoomOS 26.4.1.4
- Cisco / Cisco RoomOS SoftwareRoomOS 26.3.1.3 – RoomOS 26.3.1.3
- Cisco / Cisco RoomOS SoftwareRoomOS 11.36.1.1 – RoomOS 11.36.1.1
- Cisco / Cisco RoomOS SoftwareRoomOS 11.37.1.0 – RoomOS 11.37.1.0
- Cisco / Cisco RoomOS SoftwareRoomOS 26.5.2.0 – RoomOS 26.5.2.0
- Cisco / Cisco RoomOS SoftwareRoomOS 11.38.1.1 – RoomOS 11.38.1.1
- Cisco / roomos11.32.6.0
- Cisco / roomos_cloud11.39.1.1
Updated 41m ago · 8 sources