CVE-2025-20317
highpriority · track · 0EPSS 0.004 · 38 %ileDEEURUUSEPSS · scored 2026-10-27
A vulnerability in the Virtual Keyboard Video Monitor (vKVM) connection handling of Cisco Integrated Management Controller (IMC) could allow an unauthenticated, remote attacker to redirect a user to a malicious website. This vulnerability is due to insufficient verification of vKVM endpoints. An attacker could exploit this vulnerability by persuading a user to click a crafted link. A successful exploit could allow the attacker to redirect a user to a malicious webpage and potentially capture user credentials. Note: The affected vKVM client is also included in Cisco UCS Manager.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedCisco Unified Computing System (Managed)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Unified Computing System (Standalone)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Unified Computing System E-Series Software (UCSE)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.5–7.1
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (367)
Products and version ranges known to be affected.
- Cisco Unified Computing System (UCS) B-Seriesall versionscert_bundDEcpe:/h:cisco:unified_computing_system:b-series
- Cisco Unified Computing System (UCS) C-Seriesall versionscert_bundDEcpe:/h:cisco:unified_computing_system:c-series
- Cisco Unified Computing System (UCS) E-Seriesall versionscert_bundDEcpe:/h:cisco:unified_computing_system:e-series
- Cisco Unified Computing System (UCS) Manager Softwareall versionscert_bundDEcpe:/h:cisco:unified_computing_system:manager_software
- Cisco Unified Computing System (UCS) X-Seriesall versionscert_bundDEcpe:/h:cisco:unified_computing_system:x-series
advisories (2)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2025-1917Cisco UCS und IMC: Mehrere SchwachstellenDeutsch2025-08-27csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen im Cisco Unified Computing System (UCS) und im Cisco Integrated Management Controller ausnutzen, um Administratorrechte zu erlangen, Cross-Site-Scripting-Angriffe durchzuführen, vertrauliche Informationen offenzulegen, Daten zu manipulieren oder Benutzer auf bösartige Websites umzuleiten.
- cisco-sa-ucs-vkvmorv-CnKrV7HKCisco Integrated Management Controller Virtual Keyboard Video Monitor Open Redirect Vulnerability2025-08-27csaf · cisco_csafUS
A vulnerability in the Virtual Keyboard Video Monitor (vKVM) connection handling of Cisco Integrated Management Controller (IMC) could allow an unauthenticated, remote attacker to redirect a user to a malicious website. This vulnerability is due to insufficient verification of vKVM endpoints. An attacker could exploit this vulnerability by persuading a user to click a crafted link. A successful exploit could allow the attacker to redirect a user to a malicious webpage and potentially capture user credentials. Note: The affected vKVM client is also included in Cisco UCS Manager. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
also known as (5)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (4)
External citations — patches, advisories, analysis.
- https://nvd.nist.gov/vuln/detail/CVE-2025-20317cnnvd
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucs-vkvmorv-CnKrV7HKcnnvd
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucs-vkvmorv-CnKrV7HKenisa_euvd
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucs-vkvmorv-CnKrV7HKnvd
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