CVE-2026-20156CWE-119

CVE-2026-20156

High · published July 15, 2026

CVSS v3.1
8.1
EPSS
0%
Percentile
38.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00459 · 38.8th percentile
Weakness
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer
Published
2026-07-15T21:16Z
Affected products (4)
ProductVersionsFixed in
cisco/roomos< 11.32.6.011.32.6.0
cisco/roomos≥ 26.0.1.2, < 26.5.2.226.5.2.2
cisco/roomos_cloud< 11.39.1.111.39.1.1
cisco/roomos_cloud≥ 26.0.1.2, < 26.7.1.726.7.1.7
References (2)
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-roomos-AqNMbEq · [email protected]https://www.cve.org/Media/News/item/blog/2026/06/16/Preserving-Vulnerability-Level-Identification · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 15 JUL 16:17Z
    Cisco RoomOS Security Hardening Release - Buffer Management Vulnerabilities
    cvelistv5