CVE-2025-20317
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-08-27

Last updated on: 2025-08-29

Assigner: Cisco Systems, Inc.

Description
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.
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Meta Information
Published
2025-08-27
Last Modified
2025-08-29
Generated
2026-06-16
AI Q&A
2025-08-27
EPSS Evaluated
2026-06-14
NVD
CVE-2025-20317
EUVD
EUVD-2025-25946
Affected Vendors & Products
Showing 12 associated CPEs
Vendor Product Version / Range
cisco secure_network_analytics_appliance *
cisco secure_malware_analytics_appliance *
cisco secure_network_server_appliance *
cisco ucs_b-series_servers *
cisco ucs_e-series_servers *
cisco catalyst_8300_series_edge_ucpe 4.18.1
cisco ucs_manager_software 4.2(3p)
cisco ucs_c-series_servers *
cisco secure_endpoint_private_cloud_appliance 4.2.5
cisco ucs_x-series_servers *
cisco ucs_manager_software 4.3(6a)
cisco secure_firewall_management_center_appliance *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-601 The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.
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Executive Summary

This vulnerability is an open redirect flaw in the Virtual Keyboard Video Monitor (vKVM) connection handling of Cisco Integrated Management Controller (IMC), including the vKVM client in Cisco UCS Manager. It occurs because the system does not properly verify vKVM endpoints. An unauthenticated remote attacker can craft a malicious link that, when clicked by a user, redirects them to a malicious website. This redirection can lead to capturing user credentials. [1]

Impact Analysis

If exploited, this vulnerability can redirect users to malicious websites where attackers may steal user credentials. This can lead to unauthorized access and potential compromise of user accounts or systems. Since the attacker does not need to be authenticated and only needs to persuade a user to click a crafted link, the risk is significant. [1]

Mitigation Strategies

To mitigate this vulnerability, immediately upgrade affected Cisco Integrated Management Controller (IMC) and Cisco UCS Manager software to the fixed versions listed by Cisco. There are no workarounds available. For specific products, apply the corresponding software updates or firmware upgrades as detailed by Cisco, such as upgrading to Cisco NFVIS 4.18.1 for Catalyst 8300 Series Edge uCPE, UCS Manager Software versions 4.2(3p) or later, and other fixed releases for UCS B-Series, C-Series, E-Series, and X-Series servers. For Cisco appliances based on UCS C-Series Servers, perform direct IMC software upgrades or apply specific firmware updates or hotfixes as required. Customers with service contracts should obtain fixes through normal update channels, while those without contracts should contact Cisco TAC for assistance. [1]

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