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High CVSS 7.5

CVE-2026-20157

NVD analysis in progress

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-2026-20157 are related to missing encryption that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-311.

What this means

Exposure
Exploitable from the adjacent network, without authentication and with no action from the victim. The attack does require particular conditions, which makes it less systematic.
Impact
An attacker can read sensitive data, modify or destroy data and take the service offline.
Likelihood
Its EPSS score stays low: nothing points to imminent exploitation, which is no reason to leave it unpatched.

What to doFold into the next patch cycle.

Read automatically from the CVSS vector, the weakness type (CWE) and the EPSS score. The technical description above remains the one published by NIST.

Published
15 July 2026
CVSS
7.5 (v3.1) CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
0.06% probability of exploitation within 30 days · above 0% of all CVEs
Weakness
CWE-311
Sources
nvd
References

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