CVE-2026-20153

HIGH
MEDIUM Priority: 0.04 BB Relevance: 75/100
Published: 2026-07-15 Modified: 2026-10-24 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: None
I: None
A: High

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 Classification (1)

Affected Software (4)

VendorProductVersion
cisco roomos < 11.32.6.0
cisco roomos 26.0.1.2 – 26.5.2.2
cisco roomos_cloud < 11.39.1.1
cisco roomos_cloud 26.0.1.2 – 26.7.1.7

Bug Bounty Relevance

75 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.47%
Raw Score 0.004670
Percentile 40.4%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00467
2026-10-28
0.00467

Intelligence Sources

nvd ref →