CVE-2026-20158

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-2026-20158 are related to improper control of a resource through its lifetime that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-664.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-roomos-AqNMbEq

Configurations

No configuration.

History

15 Jul 2026, 17:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-15 17:16

Updated : 2026-07-15 19:17

NVD link : CVE-2026-20158

Mitre link : CVE-2026-20158

CVE.ORG link : CVE-2026-20158

JSON object : View

Products Affected

No product.

CWE

CWE-664

Improper Control of a Resource Through its Lifetime

{"id": "CVE-2026-20158", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-20158", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-15T18:06:50.394507Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "psirt@cisco.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "affected": [{"source": "psirt@cisco.com", "affectedData": [{"vendor": "Cisco", "product": "Cisco RoomOS Software", "versions": [{"status": "affected", "version": "RoomOS 10.11.2.2"}, {"status": "affected", "version": "RoomOS 10.15.2.2"}, {"status": "affected", "version": "RoomOS 11.5.4.6"}, {"status": "affected", "version": "RoomOS 11.5.2.4"}, {"status": "affected", "version": "RoomOS 10.8.2.5"}, {"status": "affected", "version": "RoomOS 10.11.5.2"}, {"status": "affected", "version": "RoomOS 10.11.3.0"}, {"status": "affected", "version": "RoomOS 10.15.5.3"}, {"status": "affected", "version": "RoomOS 10.19.2.2"}, {"status": "affected", "version": "RoomOS 11.1.3.1"}, {"status": "affected", "version": "RoomOS 10.11.6.0"}, {"status": "affected", "version": "RoomOS 10.19.3.0"}, {"status": "affected", "version": "RoomOS 10.19.4.2"}, {"status": "affected", "version": "RoomOS 10.3.2.4"}, {"status": "affected", "version": "RoomOS 10.3.4.0"}, {"status": "affected", "version": "RoomOS 10.15.3.0"}, {"status": "affected", "version": "RoomOS 11.1.4.1"}, {"status": "affected", "version": "RoomOS 11.14.2.3"}, {"status": "affected", "version": "RoomOS 11.1.2.4"}, {"status": "affected", "version": "RoomOS 10.8.3.1"}, {"status": "affected", "version": "RoomOS 11.14.2.1"}, {"status": "affected", "version": "RoomOS 10.3.3.0"}, {"status": "affected", "version": "RoomOS 10.8.4.0"}, {"status": "affected", "version": "RoomOS 10.15.4.1"}, {"status": "affected", "version": "RoomOS 10.19.5.6"}, {"status": "affected", "version": "RoomOS 10.11.4.1"}, {"status": "affected", "version": "RoomOS 11.9.3.1"}, {"status": "affected", "version": "RoomOS 11.5.3.3"}, {"status": "affected", "version": "RoomOS 10.3.2.0"}, {"status": "affected", "version": "RoomOS 11.9.2.4"}, {"status": "affected", "version": "RoomOS 11.14.3.0"}, {"status": "affected", "version": "RoomOS 11.17.2.2"}, {"status": "affected", "version": "RoomOS 11.14.4.0"}, {"status": "affected", "version": "RoomOS 10.19 StepUpg"}, {"status": "affected", "version": "RoomOS 11.17.3.0"}, {"status": "affected", "version": "RoomOS 11.20.2.3"}, {"status": "affected", "version": "RoomOS 11.14.5.0"}, {"status": "affected", "version": "RoomOS 11.17.4.0"}, {"status": "affected", "version": "RoomOS 11.20.3.0"}, {"status": "affected", "version": "RoomOS 11.23.1.6"}, {"status": "affected", "version": "RoomOS 11.23.1.8"}, {"status": "affected", "version": "RoomOS 11.24.1.5"}, {"status": "affected", "version": "RoomOS 11.24.2.4"}, {"status": "affected", "version": "RoomOS 11.24.3.0"}, {"status": "affected", "version": "RoomOS 11.24.4.1"}, {"status": "affected", "version": "RoomOS 11.27.2.0"}, {"status": "affected", "version": "RoomOS 11.28.1.3"}, {"status": "affected", "version": "RoomOS 11.27.3.0"}, {"status": "affected", "version": "RoomOS 11.31.1.5"}, {"status": "affected", "version": "RoomOS 11.27.4.0"}, {"status": "affected", "version": "RoomOS 11.32.2.1"}, {"status": "affected", "version": "RoomOS 11.33.1.7"}, {"status": "affected", "version": "RoomOS 26.0.1.2"}, {"status": "affected", "version": "RoomOS 11.34.1.2"}, {"status": "affected", "version": "RoomOS 11.32.3.0"}, {"status": "affected", "version": "RoomOS 11.27.5.0"}, {"status": "affected", "version": "RoomOS 11.32.4.0"}, {"status": "affected", "version": "RoomOS 26.1.1.5"}, {"status": "affected", "version": "RoomOS 11.35.1.2"}, {"status": "affected", "version": "RoomOS 26.2.2.2"}, {"status": "affected", "version": "RoomOS 11.32.5.1"}, {"status": "affected", "version": "RoomOS 26.4.1.6"}, {"status": "affected", "version": "RoomOS 26.4.1.4"}, {"status": "affected", "version": "RoomOS 26.3.1.3"}, {"status": "affected", "version": "RoomOS 11.36.1.1"}, {"status": "affected", "version": "RoomOS 11.37.1.0"}, {"status": "affected", "version": "RoomOS 26.5.2.0"}, {"status": "affected", "version": "RoomOS 11.38.1.1"}], "defaultStatus": "unknown"}]}], "published": "2026-07-15T17:16:47.640", "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-roomos-AqNMbEq", "source": "psirt@cisco.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "psirt@cisco.com", "description": [{"lang": "en", "value": "CWE-664"}]}], "descriptions": [{"lang": "en", "value": "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.\r\n\r\nThe vulnerabilities tracked by CVE-2026-20158 are related to improper control of a resource through its lifetime that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-664."}], "lastModified": "2026-07-15T19:17:01.807", "sourceIdentifier": "psirt@cisco.com"}