CVE-2026-20153

Undergoing Analysis Undergoing Analysis - In Progress

Improper Input Validation in Cisco RoomOS

Publication date: 2026-07-15

Last updated on: 2026-07-15

Assigner: Cisco Systems, Inc.

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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-07-15

Last Modified

2026-07-15

Generated

2026-08-05

AI Q&A

2026-07-16

EPSS Evaluated

2026-08-03

NVD

CVE-2026-20153

EUVD

EUVD-2026-44719

Affected Vendors & Products

Vendor	Product	Version / Range
cisco	roomos	to 2026 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-20	The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Attack-Flow Graph

Executive Summary

CVE-2026-20153 is a vulnerability in Cisco RoomOS software caused by improper input validation, classified under CWE-20. This flaw could allow attackers to manipulate input data, potentially leading to unauthorized access or system disruption. The vulnerability was discovered internally and is not currently known to be exploited.

Detection Guidance

Detection involves checking the installed version of Cisco RoomOS against the fixed versions listed in Cisco's advisory. Use the RoomOS admin interface or CLI to verify the software version. No specific commands are provided in the resources, but monitoring network traffic for unusual input patterns may help identify exploitation attempts.

Impact Analysis

This vulnerability could impact you by allowing attackers to send specially crafted input to the system, potentially causing denial of service or unauthorized actions. Since RoomOS is used for video conferencing, exploitation might disrupt meetings or compromise sensitive communications.

Compliance Impact

Improper input validation could lead to unauthorized access or data breaches, violating GDPR or HIPAA requirements for data protection. Compliance may be affected if sensitive data is exposed or if systems fail to meet security standards due to this vulnerability.

Mitigation Strategies

Immediately upgrade to the fixed software versions specified in Cisco's advisory. Since no workarounds are available, applying the official patches is critical. Ensure backups are taken before upgrading and verify the integrity of the new software version post-installation.

Hi! I’m here to help you understand CVE-2026-20153. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70