CVE-2026-20153 Cisco RoomOS Security Hardening Release - Input Validation Vulnerabilities

High 7.5 Published 15 Jul 2026 Updated 14 Aug 2026

Cisco RoomOS contains multiple input validation vulnerabilities identified during a security review, requiring a software hardening update.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-20153?

CVE-2026-20153 is a high-severity vulnerability in Cisco RoomOS Software, published on 15 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

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

Weakness: CWE-20

Which versions are affected by CVE-2026-20153?

It affects 2 products.

Products include Cisco Roomos, Cisco Roomos Cloud.

How do I fix CVE-2026-20153?

No fix has been published for CVE-2026-20153 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-20153 being exploited?

There is no known exploitation of CVE-2026-20153 in the wild and no public exploit code.

Sources

Also known as GHSA-qm4f-8gwc-gx49.