CVE-2026-20156
Last modified
CVE-2026-20156 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 0.23% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| 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 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-20156?
How severe is CVE-2026-20156?
How do I fix CVE-2026-20156?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-2015A weakness has been identified in Portabilis i-Educar up to …8.8
- CVE-2026-20150As part of Cisco's ongoing commitment to proactive security …8.8
- CVE-2026-20151A vulnerability in the web interface of Cisco Smart Software…7.3
- CVE-2026-20152A vulnerability in the authentication service feature of Cis…5.3
- CVE-2026-20153As part of Cisco's ongoing commitment to proactive security …7.5
- CVE-2026-20155A vulnerability in the web-based management interface of Cis…8
- CVE-2026-20157As part of Cisco's ongoing commitment to proactive security …9.8
- CVE-2026-20158As part of Cisco's ongoing commitment to proactive security …7.5
- CVE-2026-2016A security vulnerability has been detected in happyfish100 l…7.8
- CVE-2026-20160A vulnerability in Cisco Smart Software Manager On-Prem (SSM…9.8
- CVE-2026-20161A vulnerability in the CLI of Cisco ThousandEyes Enterprise …5.5
- CVE-2026-20162In Splunk Enterprise versions below 10.2.0, 10.0.3, 9.4.9, a…6.3
Are you affected by CVE-2026-20156?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST