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CVE-2026-20302

Cisco RoomOS Stack Overflow Vulnerability

A vulnerability in the USB driver of Cisco RoomOS could allow an unauthenticated, local attacker with physical access to the USB port on an affected device to execute arbitrary code with root privileges. This vulnerability is due to insufficient boundary checks for specific data that is provided through the USB driver. An attacker could exploit this vulnerability by connecting a malicious USB device to an affected device. A successful exploit could allow the attacker to cause a buffer overflow condition on the affected system and execute arbitrary code with root privileges.

CVSS 3.1 · 6.1 Medium EPSS < 1% KEV · Not listed
Vendors
Cisco
Products
Cisco Roomos Software
CVE-2026-20289

Cisco RoomOS Logging Subsystem Information Disclosure Vulnerability

A vulnerability in the logging subsystem of Cisco RoomOS could allow an authenticated, local attacker with low privileges to access sensitive information. This vulnerability is due to the logging of sensitive information. An attacker could exploit this vulnerability by enabling a specific logging level and then collecting the system logs. A successful exploit could allow the attacker to view sensitive information like user login credentials.

CVSS 3.1 · 5.7 Medium EPSS < 1% KEV · Not listed
Vendors
Cisco
Products
Cisco Roomos Software Roomos Roomos Cloud
CVE-2026-20187

Cisco RoomOS Security Hardening Release - Exceptional Conditions Handling Vulnerabilities

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-2026-20187 are related to improper handling of exceptional conditions that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-703.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Cisco
Products
Cisco Roomos Software Roomos Roomos Cloud
CVE-2026-20157

Cisco RoomOS Security Hardening Release - Missing Encryption Vulnerabilities

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-2026-20157 are related to missing encryption that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-311.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Cisco
Products
Cisco Roomos Software Roomos Roomos Cloud
CVE-2026-20156

Cisco RoomOS Security Hardening Release - Buffer Management Vulnerabilities

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 3.1 · 8.1 High EPSS < 1% KEV · Not listed
Vendors
Cisco
Products
Cisco Roomos Software Roomos Roomos Cloud
CVE-2026-20153

Cisco RoomOS Security Hardening Release - Input Validation Vulnerabilities

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-2026-20153 are related to improper input validation that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-20.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Cisco
Products
Cisco Roomos Software Roomos Roomos Cloud
CVE-2026-20150

Cisco RoomOS Security Hardening Release - Access Control Vulnerabilities

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-2026-20150 are related to improper access control&nbsp;that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-284.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
Cisco
Products
Cisco Roomos Software Roomos Roomos Cloud