Is CVE-2026-20099 actively exploited?

No active exploitation of CVE-2026-20099 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-20099 be exploited remotely?

No. CVE-2026-20099 requires local access to exploit.

What is the CVSS score of CVE-2026-20099?

CVE-2026-20099 has a CVSS score of 6.7 (MEDIUM) and an EPSS exploitation probability of 0.04%.

HOME VULNERABILITIESCVE-2026-20099

MEDIUM

CVE-2026-20099

CWE-78Published: February 25, 2026· Updated: Feb 27, 2026

6.7

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:13.9th

Official Description

A vulnerability in the web-based management interface of Cisco FXOS Software and Cisco UCS Manager Software could allow an authenticated, local attacker with administrative privileges to perform command injection attacks on an affected system and elevate privileges to root. 

This vulnerability is due to insufficient input validation of command arguments supplied by the user. An attacker could exploit this vulnerability by authenticating to a device and submitting crafted input to the affected command. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system of the affected device with root-level privileges.

NVD Source

Technical Analysis

CVE-2026-20099 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 6.7.