CVE-2026-20158
Cisco RoomOS Security Hardening Release - Resource Lifetime Management Vulnerabilities
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
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-2026-20158 are related to improper control of a resource through its lifetime that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-664.
| CWE | CWE-664 |
| Vendor | cisco |
| Product | cisco roomos software |
| Ecosystems | |
| Industries | NetworkingTelecommunications |
| Published | Jul 15, 2026 |
| Last Updated | Jul 15, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
Cisco / Cisco RoomOS Software
RoomOS 10.11.2.2 RoomOS 10.15.2.2 RoomOS 11.5.4.6 RoomOS 11.5.2.4 RoomOS 10.8.2.5 RoomOS 10.11.5.2 RoomOS 10.11.3.0 RoomOS 10.15.5.3 RoomOS 10.19.2.2 RoomOS 11.1.3.1 RoomOS 10.11.6.0 RoomOS 10.19.3.0 RoomOS 10.19.4.2 RoomOS 10.3.2.4 RoomOS 10.3.4.0 RoomOS 10.15.3.0 RoomOS 11.1.4.1 RoomOS 11.14.2.3 RoomOS 11.1.2.4 RoomOS 10.8.3.1 RoomOS 11.14.2.1 RoomOS 10.3.3.0 RoomOS 10.8.4.0 RoomOS 10.15.4.1 RoomOS 10.19.5.6 RoomOS 10.11.4.1 RoomOS 11.9.3.1 RoomOS 11.5.3.3 RoomOS 10.3.2.0 RoomOS 11.9.2.4 RoomOS 11.14.3.0 RoomOS 11.17.2.2 RoomOS 11.14.4.0 RoomOS 10.19 StepUpg RoomOS 11.17.3.0 RoomOS 11.20.2.3 RoomOS 11.14.5.0 RoomOS 11.17.4.0 RoomOS 11.20.3.0 RoomOS 11.23.1.6 RoomOS 11.23.1.8 RoomOS 11.24.1.5 RoomOS 11.24.2.4 RoomOS 11.24.3.0 RoomOS 11.24.4.1 RoomOS 11.27.2.0 RoomOS 11.28.1.3 RoomOS 11.27.3.0 RoomOS 11.31.1.5 RoomOS 11.27.4.0 RoomOS 11.32.2.1 RoomOS 11.33.1.7 RoomOS 26.0.1.2 RoomOS 11.34.1.2 RoomOS 11.32.3.0 RoomOS 11.27.5.0 RoomOS 11.32.4.0 RoomOS 26.1.1.5 RoomOS 11.35.1.2 RoomOS 26.2.2.2 RoomOS 11.32.5.1 RoomOS 26.4.1.6 RoomOS 26.4.1.4 RoomOS 26.3.1.3 RoomOS 11.36.1.1 RoomOS 11.37.1.0 RoomOS 26.5.2.0 RoomOS 11.38.1.1