Cisco Enterprise NFV Infrastructure Software Password improper authentication

Summaryinfo

A vulnerability has been found in Cisco Enterprise NFV Infrastructure Software, Unified Computing System and Unified Computing System E-Series Software and classified as critical. This issue affects some unknown processing of the component Password Handler. This manipulation causes improper authentication. This vulnerability is handled as CVE-2026-20093. The attack can be initiated remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Cisco Enterprise NFV Infrastructure Software, Unified Computing System and Unified Computing System E-Series Software (the affected version unknown) and classified as critical. Affected by this vulnerability is an unknown part of the component Password Handler. The manipulation with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability in the change password functionality of Cisco Integrated Management Controller (IMC) could allow an unauthenticated, remote attacker to bypass authentication and gain access to the system as Admin. This vulnerability is due to incorrect handling of password change requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to bypass authentication, alter the passwords of any user on the system, including an Admin user, and gain access to the system as that user.

The advisory is shared at sec.cloudapps.cisco.com. This vulnerability is known as CVE-2026-20093 since 10/08/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/01/2026).

Upgrading eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Virtualization Software

Vendor

• Cisco

Name

• Enterprise NFV Infrastructure Software
• Unified Computing System
• Unified Computing System E-Series Software

License

• commercial

Website

• Vendor: https://www.cisco.com/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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