CVE-2026-20158 (GCVE-0-2026-20158)

Vulnerability from cvelistv5 – Published: 2026-07-15 16:18 – Updated: 2026-08-14 21:00
VLAI
Title
Cisco RoomOS Security Hardening Release - Resource Lifetime Management Vulnerabilities
Summary
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.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-15 18:06 UTC
CWE
  • CWE-664 - Improper Control of a Resource Through its Lifetime
Assigner
References
Impacted products
Vendor Product Version
Cisco Cisco RoomOS Software Affected: RoomOS 10.11.2.2
Affected: RoomOS 10.15.2.2
Affected: RoomOS 11.5.4.6
Affected: RoomOS 11.5.2.4
Affected: RoomOS 10.8.2.5
Affected: RoomOS 10.11.5.2
Affected: RoomOS 10.11.3.0
Affected: RoomOS 10.15.5.3
Affected: RoomOS 10.19.2.2
Affected: RoomOS 11.1.3.1
Affected: RoomOS 10.11.6.0
Affected: RoomOS 10.19.3.0
Affected: RoomOS 10.19.4.2
Affected: RoomOS 10.3.2.4
Affected: RoomOS 10.3.4.0
Affected: RoomOS 10.15.3.0
Affected: RoomOS 11.1.4.1
Affected: RoomOS 11.14.2.3
Affected: RoomOS 11.1.2.4
Affected: RoomOS 10.8.3.1
Affected: RoomOS 11.14.2.1
Affected: RoomOS 10.3.3.0
Affected: RoomOS 10.8.4.0
Affected: RoomOS 10.15.4.1
Affected: RoomOS 10.19.5.6
Affected: RoomOS 10.11.4.1
Affected: RoomOS 11.9.3.1
Affected: RoomOS 11.5.3.3
Affected: RoomOS 10.3.2.0
Affected: RoomOS 11.9.2.4
Affected: RoomOS 11.14.3.0
Affected: RoomOS 11.17.2.2
Affected: RoomOS 11.14.4.0
Affected: RoomOS 10.19 StepUpg
Affected: RoomOS 11.17.3.0
Affected: RoomOS 11.20.2.3
Affected: RoomOS 11.14.5.0
Affected: RoomOS 11.17.4.0
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 11.28.1.3
Affected: RoomOS 11.27.3.0
Affected: RoomOS 11.31.1.5
Affected: RoomOS 11.27.4.0
Affected: RoomOS 11.32.2.1
Affected: RoomOS 11.33.1.7
Affected: RoomOS 26.0.1.2
Affected: RoomOS 11.34.1.2
Affected: RoomOS 11.32.3.0
Affected: RoomOS 11.27.5.0
Affected: RoomOS 11.32.4.0
Affected: RoomOS 26.1.1.5
Affected: RoomOS 11.35.1.2
Affected: RoomOS 26.2.2.2
Affected: RoomOS 11.32.5.1
Affected: RoomOS 26.4.1.6
Affected: RoomOS 26.4.1.4
Affected: RoomOS 26.3.1.3
Affected: RoomOS 11.36.1.1
Affected: RoomOS 11.37.1.0
Affected: RoomOS 26.5.2.0
Affected: RoomOS 11.38.1.1
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Advisory\"]},{\"url\":\"https://www.cve.org/Media/News/item/blog/2026/06/16/Preserving-Vulnerability-Level-Identification\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"tags\": [\"x_bundling-flagged-by-CVE-Program\"], \"references\": [{\"url\": \"https://www.cve.org/Media/News/item/blog/2026/06/16/Preserving-Vulnerability-Level-Identification\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"The CVE Program recognizes that this CVE Record provides vulnerability information that a Supplier CNA believes is very important to consumers. The CVE Program has flagged this CVE Record as it assigns a single CVE ID to a collection of individual vulnerabilities which does not align with CVE\u0027s \\\"one vulnerability, one ID\\\" principle, and therefore provides incomplete information. For further clarification, please see the CVE Program\u0027s blog, \\\"Preserving Vulnerability-Level Identification\\\" linked below. Details within the CNA container below are viewable by clicking on the CNA name.\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2026-08-14T21:00:52.654Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-20158\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-07-15T18:06:50.394507Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-07-15T18:06:54.566Z\"}}], \"cna\": {\"title\": \"Cisco RoomOS Security Hardening Release - Resource Lifetime Management Vulnerabilities\", \"source\": {\"defects\": [\"CSCwu59015\"], \"advisory\": \"cisco-sa-hardening-roomos-AqNMbEq\", \"discovery\": \"INTERNAL\"}, \"metrics\": [{\"format\": \"cvssV3_1\", \"cvssV3_1\": {\"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\"}}], \"affected\": [{\"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\"}], \"exploits\": [{\"lang\": \"en\", \"value\": \"The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.\"}], \"references\": [{\"url\": \"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-roomos-AqNMbEq\", \"name\": \"cisco-sa-hardening-roomos-AqNMbEq\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"As part of Cisco\u0027s 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.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"cwe\", \"cweId\": \"CWE-664\", \"description\": \"Improper Control of a Resource Through its Lifetime\"}]}], \"providerMetadata\": {\"orgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"shortName\": \"cisco\", \"dateUpdated\": \"2026-07-15T16:18:27.994Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-20158\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-14T21:00:52.654Z\", \"dateReserved\": \"2025-10-08T11:59:15.387Z\", \"assignerOrgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"datePublished\": \"2026-07-15T16:18:27.994Z\", \"assignerShortName\": \"cisco\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.