CVE-2026-20156: Improper Restriction of Operations within the Bounds of a Memory Buffer in Cisco Cisco RoomOS Software
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.
AI Analysis
Technical Summary
This vulnerability in Cisco RoomOS Software involves improper restriction of operations within the bounds of a memory buffer, categorized under CWE-119. It was discovered internally by Cisco during a comprehensive security review and has been assigned CVE-2026-20156. The CVSS v3.1 base score is 8.1, indicating high severity, with network attack vector, high attack complexity, no privileges required, no user interaction, and impacts on confidentiality, integrity, and availability. No vendor advisory or patch information is currently available, and no known exploits are reported in the wild.
Potential Impact
Successful exploitation could allow an attacker to perform unauthorized operations beyond the intended memory buffer boundaries, potentially leading to full compromise of confidentiality, integrity, and availability of the affected system. Given the CVSS score of 8.1, the impact is considered high.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or workaround has been published, monitoring Cisco's advisories for updates is recommended. Avoid exposure of vulnerable systems to untrusted networks if possible until a patch is available.
CVE-2026-20156: Improper Restriction of Operations within the Bounds of a Memory Buffer in Cisco Cisco RoomOS Software
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 v3.1
Score 8.1high
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Cisco RoomOS Software involves improper restriction of operations within the bounds of a memory buffer, categorized under CWE-119. It was discovered internally by Cisco during a comprehensive security review and has been assigned CVE-2026-20156. The CVSS v3.1 base score is 8.1, indicating high severity, with network attack vector, high attack complexity, no privileges required, no user interaction, and impacts on confidentiality, integrity, and availability. No vendor advisory or patch information is currently available, and no known exploits are reported in the wild.
Potential Impact
Successful exploitation could allow an attacker to perform unauthorized operations beyond the intended memory buffer boundaries, potentially leading to full compromise of confidentiality, integrity, and availability of the affected system. Given the CVSS score of 8.1, the impact is considered high.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or workaround has been published, monitoring Cisco's advisories for updates is recommended. Avoid exposure of vulnerable systems to untrusted networks if possible until a patch is available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- cisco
- Date Reserved
- 2025-10-08T11:59:15.387Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a57b64168715ace430b382b
Added to database: 07/15/2026, 16:33:05 UTC
Last enriched: 07/15/2026, 16:49:09 UTC
Last updated: 07/15/2026, 22:54:36 UTC
Views: 13
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