PT-2026-21951 · Cisco · Cisco Fxos+1

Published 2026-02-25 · Updated 2026-02-26 · CVE-2026-20099

Positive Technologies (AI Summary)

CVSS v3.1

6.7

Medium

Base vector

AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Cisco FXOS Software (affected versions not specified) Cisco UCS Manager Software (affected versions not specified)

Description A flaw exists in the web-based management interface of Cisco FXOS Software and Cisco UCS Manager Software that could allow a locally authenticated attacker with administrative privileges to execute command injection attacks. This is caused by inadequate validation of user-supplied command arguments. A successful exploit could allow an attacker to execute arbitrary commands on the affected device's operating system with root-level privileges. The affected command accepts crafted input from the user.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

CVE-2026-20099

Affected Products

Cisco Fxos

Cisco Ucs Manager

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-20099 · Security Note
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucsciv-wGYtC78q · Vendor Advisory
• https://twitter.com/CVEnew/status/2027099320584221127 · Twitter Post
• https://twitter.com/infoflowcloud/status/2027100449686351999 · Twitter Post