CVE-2026-20037
Description
A vulnerability in the NX-OS CLI privilege levels of Cisco UCS Manager Software could allow an authenticated, local attacker with read-only privileges to modify files and perform unauthorized actions on an affected system. This vulnerability exists because unnecessary privileges are given to the user. An attacker could exploit this vulnerability by authenticating to a device as a read-only user and connecting to the NX-OS CLI. A successful exploit could allow the attacker to create or overwrite files in the file system or perform limited privileged actions on an affected device.
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Cisco Cisco Unified Computing System (Managed) | 4.0(4c), 4.0(2b), 4.1(2a), 4.0(1a), 4.0(2a), 4.0(1b), 4.1(1c), 4.0(4a), 4.0(4b), 4.0(2e), 4.1(1a), 4.0(4d), 4.0(4h), 4.0(4g), 4.0(1d), 4.1(1e), 4.0(4f), 4.0(4e), 4.0(4i), 4.1(1d), 4.0(2d), 4.1(1b), 4.0(1c), 4.1(2b), 4.0(4k), 4.1(3a), 4.1(3b), 4.1(2c), 4.0(4l), 4.1(4a), 4.1(3c), 4.1(3d), 4.2(1c), 4.2(1d), 4.0(4m), 4.1(3e), 4.2(1f), 4.1(3f), 4.2(1i), 4.1(3h), 4.2(1k), 4.2(1l), 4.0(4n), 4.2(1m), 4.1(3i), 4.2(2a), 4.2(1n), 4.1(3j), 4.2(2c), 4.2(2d), 4.2(3b), 4.1(3k), 4.0(4o), 4.2(2e), 4.2(3d), 4.2(3e), 4.2(3g), 4.1(3l), 4.3(2b), 4.2(3h), 4.2(3i), 4.3(2c), 4.1(3m), 4.3(2e), 4.3(3a), 4.2(3j), 4.3(3c), 4.3(4a), 4.2(3k), 4.3(4b), 4.3(4c), 4.2(3l), 4.3(4d), 4.3(2f), 4.2(3m), 4.3(5a), 4.3(4e), 4.1(3n), 4.3(4f), 4.2(3n), 4.3(5c), 4.2(3o), 4.3(5d), 4.3(6a), 4.3(6b), 4.3(5e), 4.3(6c), 4.2(3p), 4.3(6d), 4.3(6e) | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.