CVE-2026-20099
Cisco UCS Manager and FXOS Software Command Injection Vulnerability
At a glance
- Source
- NVD
- EPSS
- EPSS 0.74 % · percentile 55 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Deferred
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.
Weaknesses (CWE)
- CWE-78 — Improper Neutralization of Special Elements used in an OS Command
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.7 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H | cisco |
| CVSS 3.1 | MEDIUM 6.7 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H | NVD · psirt@cisco.com (Secondary) |
European references
- ENISA EUVD · EUVD-2026-8671
- GCVE · GCVE-0-2026-20099
Affected products
| Product | Versions |
|---|---|
| Cisco · Cisco Firepower Extensible Operating System (FXOS) | affected 2.3.1.99 ; affected 2.3.1.56 ; affected 2.3.1.110 ; affected 2.3.1.58 ; affected 2.6.1.174 ; affected 2.6.1.157 |
| Cisco · Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | affected 9.12.2 ; affected 9.12.1 ; affected 9.12.3 ; affected 9.12.4 ; affected 9.12.3.2 ; affected 9.12.3.12 |
| Cisco · Cisco Unified Computing System (Managed) | affected 4.0(4h) ; affected 4.1(1a) ; affected 4.0(1c) ; affected 4.0(4a) ; affected 4.0(1a) ; affected 4.0(1d) |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |