CVE-2026-20302 (GCVE-0-2026-20302)
Vulnerability from cvelistv5 – Published: 2026-08-19 16:17 – Updated: 2026-08-20 15:57
VLAI
EPSS
VEX
Title
Cisco RoomOS Stack Overflow Vulnerability
Summary
A vulnerability in the USB driver of Cisco RoomOS could allow an unauthenticated, local attacker with physical access to the USB port on an affected device to execute arbitrary code with root privileges.
This vulnerability is due to insufficient boundary checks for specific data that is provided through the USB driver. An attacker could exploit this vulnerability by connecting a malicious USB device to an affected device. A successful exploit could allow the attacker to cause a buffer overflow condition on the affected system and execute arbitrary code with root privileges.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 15:40 UTC
CWE
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| 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 26.5.2.2 Affected: RoomOS 26.6.1.4 Affected: RoomOS 11.38.1.1 Affected: RoomOS 11.32.6.0 Affected: RoomOS 11.39.1.1 |
guessed |
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\"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}], \"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 26.5.2.2\"}, {\"status\": \"affected\", \"version\": \"RoomOS 26.6.1.4\"}, {\"status\": \"affected\", \"version\": \"RoomOS 11.38.1.1\"}, {\"status\": \"affected\", \"version\": \"RoomOS 11.32.6.0\"}, {\"status\": \"affected\", \"version\": \"RoomOS 11.39.1.1\"}], \"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-roomos-bof-vTMANZgu\", \"name\": \"cisco-sa-roomos-bof-vTMANZgu\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A vulnerability in the USB driver of Cisco RoomOS could allow an unauthenticated, local attacker with physical access to the USB port on an affected device to execute arbitrary code with\u0026nbsp;root privileges.\\r\\n\\r\\nThis vulnerability is due to insufficient boundary checks for specific data that is provided through the USB driver. An attacker could exploit this vulnerability by connecting a malicious USB device to an affected device. A successful exploit could allow the attacker to cause a buffer overflow condition on the affected system and execute arbitrary code with root privileges.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"cwe\", \"cweId\": \"CWE-120\", \"description\": \"Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"shortName\": \"cisco\", \"dateUpdated\": \"2026-08-19T16:17:07.749Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-20302\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-20T15:57:08.625Z\", \"dateReserved\": \"2025-10-08T11:59:15.408Z\", \"assignerOrgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"datePublished\": \"2026-08-19T16:17:07.749Z\", \"assignerShortName\": \"cisco\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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