CVE-2026-20187 - Cisco RoomOS Security Hardening Release - Exceptional Conditions Handling Vulnerabilities

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HIGH

Cisco RoomOS Security Hardening Release - Exceptional Conditions Handling Vulnerabilities

Published Jul 15, 2026

7.5

HIGH

CVSS 3.1

EPSS 0.47%

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-2026-20187 are related to improper handling of exceptional conditions that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-703.

Affected products

Vendor Cisco Product Cisco RoomOS Software Default
n/a
- Version
  RoomOS 10.11.2.2
  Status
  affected
  Constraints
  -
- Version
  RoomOS 10.11.3.0
  Status
  affected
  Constraints
  -
- Version
  RoomOS 10.11.4.1
  Status
  affected
  Constraints
  -
- Version
  RoomOS 10.11.5.2
  Status
  affected
  Constraints
  -
- Version
  RoomOS 10.11.6.0
  Status
  affected
  Constraints
  -
- Version
  RoomOS 10.15.2.2
  Status
  affected
  Constraints
  -
- Version
  RoomOS 10.15.3.0
  Status
  affected
  Constraints
  -
- Version
  RoomOS 10.15.4.1
  Status
  affected
  Constraints
  -
- Version
  RoomOS 10.15.5.3
  Status
  affected
  Constraints
  -
- Version
  RoomOS 10.19 StepUpg
  Status
  affected
  Constraints
  -
- Version
  RoomOS 10.19.2.2
  Status
  affected
  Constraints
  -
- Version
  RoomOS 10.19.3.0
  Status
  affected
  Constraints
  -
- Version
  RoomOS 10.19.4.2
  Status
  affected
  Constraints
  -
- Version
  RoomOS 10.19.5.6
  Status
  affected
  Constraints
  -
- Version
  RoomOS 10.3.2.0
  Status
  affected
  Constraints
  -
- Version
  RoomOS 10.3.2.4
  Status
  affected
  Constraints
  -
- Version
  RoomOS 10.3.3.0
  Status
  affected
  Constraints
  -
- Version
  RoomOS 10.3.4.0
  Status
  affected
  Constraints
  -
- Version
  RoomOS 10.8.2.5
  Status
  affected
  Constraints
  -
- Version
  RoomOS 10.8.3.1
  Status
  affected
  Constraints
  -
- Version
  RoomOS 10.8.4.0
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.1.2.4
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.1.3.1
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.1.4.1
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.14.2.1
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.14.2.3
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.14.3.0
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.14.4.0
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.14.5.0
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.17.2.2
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.17.3.0
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.17.4.0
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.20.2.3
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.20.3.0
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.23.1.6
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.23.1.8
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.24.1.5
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.24.2.4
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.24.3.0
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.24.4.1
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.27.2.0
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.27.3.0
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.27.4.0
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.27.5.0
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.28.1.3
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.31.1.5
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.32.2.1
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.32.3.0
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.32.4.0
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.32.5.1
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.33.1.7
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.34.1.2
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.35.1.2
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.36.1.1
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.37.1.0
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.5.2.4
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.5.3.3
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.5.4.6
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.9.2.4
  Status
  affected
  Constraints
  -
- Version
  RoomOS 11.9.3.1
  Status
  affected
  Constraints
  -
- Version
  RoomOS 26.0.1.2
  Status
  affected
  Constraints
  -
- Version
  RoomOS 26.1.1.5
  Status
  affected
  Constraints
  -
- Version
  RoomOS 26.2.2.2
  Status
  affected
  Constraints
  -
- Version
  RoomOS 26.3.1.3
  Status
  affected
  Constraints
  -
- Version
  RoomOS 26.4.1.4
  Status
  affected
  Constraints
  -
- Version
  RoomOS 26.4.1.6
  Status
  affected
  Constraints
  -
- Version
  RoomOS 26.5.2.0
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Cisco

Cisco RoomOS Software

n/a

Version	Status	Constraints
RoomOS 10.11.2.2	affected	-
RoomOS 10.11.3.0	affected	-
RoomOS 10.11.4.1	affected	-
RoomOS 10.11.5.2	affected	-
RoomOS 10.11.6.0	affected	-
RoomOS 10.15.2.2	affected	-
RoomOS 10.15.3.0	affected	-
RoomOS 10.15.4.1	affected	-
RoomOS 10.15.5.3	affected	-
RoomOS 10.19 StepUpg	affected	-
RoomOS 10.19.2.2	affected	-
RoomOS 10.19.3.0	affected	-
RoomOS 10.19.4.2	affected	-
RoomOS 10.19.5.6	affected	-
RoomOS 10.3.2.0	affected	-
RoomOS 10.3.2.4	affected	-
RoomOS 10.3.3.0	affected	-
RoomOS 10.3.4.0	affected	-
RoomOS 10.8.2.5	affected	-
RoomOS 10.8.3.1	affected	-
RoomOS 10.8.4.0	affected	-
RoomOS 11.1.2.4	affected	-
RoomOS 11.1.3.1	affected	-
RoomOS 11.1.4.1	affected	-
RoomOS 11.14.2.1	affected	-
RoomOS 11.14.2.3	affected	-
RoomOS 11.14.3.0	affected	-
RoomOS 11.14.4.0	affected	-
RoomOS 11.14.5.0	affected	-
RoomOS 11.17.2.2	affected	-
RoomOS 11.17.3.0	affected	-
RoomOS 11.17.4.0	affected	-
RoomOS 11.20.2.3	affected	-
RoomOS 11.20.3.0	affected	-
RoomOS 11.23.1.6	affected	-
RoomOS 11.23.1.8	affected	-
RoomOS 11.24.1.5	affected	-
RoomOS 11.24.2.4	affected	-
RoomOS 11.24.3.0	affected	-
RoomOS 11.24.4.1	affected	-
RoomOS 11.27.2.0	affected	-
RoomOS 11.27.3.0	affected	-
RoomOS 11.27.4.0	affected	-
RoomOS 11.27.5.0	affected	-
RoomOS 11.28.1.3	affected	-
RoomOS 11.31.1.5	affected	-
RoomOS 11.32.2.1	affected	-
RoomOS 11.32.3.0	affected	-
RoomOS 11.32.4.0	affected	-
RoomOS 11.32.5.1	affected	-
RoomOS 11.33.1.7	affected	-
RoomOS 11.34.1.2	affected	-
RoomOS 11.35.1.2	affected	-
RoomOS 11.36.1.1	affected	-
RoomOS 11.37.1.0	affected	-
RoomOS 11.5.2.4	affected	-
RoomOS 11.5.3.3	affected	-
RoomOS 11.5.4.6	affected	-
RoomOS 11.9.2.4	affected	-
RoomOS 11.9.3.1	affected	-
RoomOS 26.0.1.2	affected	-
RoomOS 26.1.1.5	affected	-
RoomOS 26.2.2.2	affected	-
RoomOS 26.3.1.3	affected	-
RoomOS 26.4.1.4	affected	-
RoomOS 26.4.1.6	affected	-
RoomOS 26.5.2.0	affected	-

Remediation

No remediation recorded yet.

Weaknesses (1)

CWE-703

References (2)

Link	Providers	Tags
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-roomos-AqNMbEq		Vendor Advisory
https://www.cve.org/Media/News/item/blog/2026/06/16/Preserving-Vulnerability-Level-Identification

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner cisco

Published Jul 15, 2026

Updated Aug 14, 2026

Reserved Oct 8, 2025

Link CVE-2026-20187

CISA Vulnrichment

Updated Jul 15, 2026

NVD

Status Undergoing Analysis

Modified Aug 14, 2026

Link CVE-2026-20187

Red Hat

Severity n/a

Public date n/a

Links CVE-2026-20187