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CVE-2026-20158— Cisco RoomOS Security Hardening Release - Resource Lifetime Management Vulnerabilities

Quick assessment

Affected
Cisco Cisco RoomOS Software
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Cisco RoomOS Software是美国Cisco公司的一套协作会议操作系统。 Cisco RoomOS Software存在资源管理错误漏洞，该漏洞源于资源生命周期控制不当，可能导致攻击者通过未授权的网络访问影响系统可用性。

CVSS 7.5 · High EPSS 0.47% · P38

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 68

VendorProduct Version RangeStatus
Cisco Cisco RoomOS Software RoomOS 10.11.2.2 affected
RoomOS 10.15.2.2 affected
RoomOS 11.5.4.6 affected
RoomOS 11.5.2.4 affected
RoomOS 10.8.2.5 affected
RoomOS 10.11.5.2 affected
RoomOS 10.11.3.0 affected
RoomOS 10.15.5.3 affected
… +60 more rows
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I. Basic Information for CVE-2026-20158

Vulnerability Information
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Vulnerability Title
Cisco RoomOS Security Hardening Release - Resource Lifetime Management Vulnerabilities
Source: CVE Program / CVE List V5
Vulnerability 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-2026-20158 are related to improper control of a resource through its lifetime that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-664.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
在生命周期中对资源的控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco RoomOS Software 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco RoomOS Software是美国Cisco公司的一套协作会议操作系统。 Cisco RoomOS Software存在资源管理错误漏洞，该漏洞源于资源生命周期控制不当，可能导致攻击者通过未授权的网络访问影响系统可用性。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Cisco Cisco RoomOS Software RoomOS 10.11.2.2 -

II. Public POCs for CVE-2026-20158

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III. Intelligence Information for CVE-2026-20158

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Vendor Advisories for CVE-2026-20158 (1)

Same Patch Batch · Cisco · 2026-07-15 · 7 CVEs total

CVE-2026-20150 8.8 HIGH Cisco RoomOS Security Hardening Release - Access Control Vulnerabilities
CVE-2026-20156 8.1 HIGH Cisco RoomOS Security Hardening Release - Buffer Management Vulnerabilities
CVE-2026-20157 7.5 HIGH Cisco RoomOS Security Hardening Release - Missing Encryption Vulnerabilities
CVE-2026-20153 7.5 HIGH Cisco RoomOS Security Hardening Release - Input Validation Vulnerabilities
CVE-2026-20187 7.5 HIGH Cisco RoomOS Security Hardening Release - Exceptional Conditions Handling Vulnerabilities
CVE-2026-20146 5.5 MEDIUM Cisco Identity Services Engine Path Traversal Vulnerability

IV. Related Vulnerabilities

Same product: Cisco RoomOS Software
Same vendor: Cisco
Same weakness: CWE-664

V. Comments for CVE-2026-20158

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