CVE-2026-20156

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 v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-roomos-AqNMbEq	Vendor Advisory
https://www.cve.org/Media/News/item/blog/2026/06/16/Preserving-Vulnerability-Level-Identification

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:cisco:roomos::::::::
	cpe:2.3:o:cisco:roomos::::::::
	cpe:2.3:o:cisco:roomos_cloud::::::::
	cpe:2.3:o:cisco:roomos_cloud::::::::

History

24 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) Como parte del compromiso continuo de Cisco con la seguridad proactiva y la calidad del producto, el equipo de ingeniería de Cisco RoomOS ha llevado a cabo una revisión de seguridad interna exhaustiva. Esta revisión resultó en una versión de endurecimiento de software que aborda múltiples vulnerabilidades descubiertas internamente. Las vulnerabilidades rastreadas por CVE-2026-20156 están relacionadas con la restricción inadecuada de operaciones dentro de los límites de un búfer de memoria que se agrupan bajo el pilar de la enumeración de debilidades comunes (CWE) CWE-119.

Information

Published : 2026-07-15 17:16

Updated : 2026-10-24 21:10

NVD link : CVE-2026-20156

Mitre link : CVE-2026-20156

CVE.ORG link : CVE-2026-20156

JSON object : View

Products Affected

cisco

roomos_cloud
roomos

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

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"affected", "version": "RoomOS 11.37.1.0"}, {"status": "affected", "version": "RoomOS 26.5.2.0"}, {"status": "affected", "version": "RoomOS 11.38.1.1"}], "defaultStatus": "unknown"}]}], "published": "2026-07-15T17:16:47.380", "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-roomos-AqNMbEq", "tags": ["Vendor Advisory"], "source": "psirt@cisco.com"}, {"url": "https://www.cve.org/Media/News/item/blog/2026/06/16/Preserving-Vulnerability-Level-Identification", "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Undergoing Analysis", "weaknesses": [{"type": "Secondary", "source": "psirt@cisco.com", "description": [{"lang": "en", "value": "CWE-119"}]}], "descriptions": [{"lang": "en", "value": "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. 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