CVE-2026-20156
published 2026-07-15CVE-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…
PriorityP353critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
0.46%
38.8th percentile
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.
Affected
72 ranges· showing 25
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| cisco | cisco_roomos_software | — | — |
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| cisco | cisco_roomos_software | — | — |
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| cisco | cisco_roomos_software | — | — |
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VulDB
Cisco RoomOS up to 26.5.2.0 Memory Buffer memory corruption
vuldb·2026-08-15·CVSS 9.8
CVE-2026-20156 [CRITICAL] Cisco RoomOS up to 26.5.2.0 Memory Buffer memory corruption
A vulnerability classified as very critical was found in Cisco RoomOS. This vulnerability affects unknown code of the component Memory Buffer. Such manipulation leads to memory corruption.
This vulnerability is documented as CVE-2026-20156. The attack can be executed remotely. There is not any exploit available.
Upgrading the affected component is advised.
GHSA
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.
ghsa_unreviewed·2026-07-15·CVSS 8.1
CVE-2026-20156 [HIGH] CWE-119 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.
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.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-07-15
Published