Cisco UCS Mgr: Authenticated Remote Cmd Injection via CLI/Web (CVE-2026-20036)
CVE-2026-20036 Published on February 25, 2026
Cisco UCS Manager Software Command Injection Vulnerability
A vulnerability in the CLI and web-based management interface of Cisco UCS Manager Software could allow an authenticated, remote attacker with valid administrative privileges to execute arbitrary commands on the underlying operating system of an affected device.
This vulnerability is due to insufficient input validation of command arguments that are 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 an affected device with root-level privileges.
Vulnerability Analysis
CVE-2026-20036 is exploitable with network access, and requires user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality and integrity, and no impact on availability.
Weakness Type
What is a Shell injection Vulnerability?
The software constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
CVE-2026-20036 has been classified to as a Shell injection vulnerability or weakness.
Products Associated with CVE-2026-20036
You can be notified by email with stack.watch whenever vulnerabilities like CVE-2026-20036 are published in Cisco Unified Computing System:
Affected Versions
Cisco Unified Computing System (Managed):- Version 4.0(4h) is affected.
- Version 4.1(1a) is affected.
- Version 4.0(1c) is affected.
- Version 4.0(4a) is affected.
- Version 4.0(1a) is affected.
- Version 4.0(1d) is affected.
- Version 4.1(1c) is affected.
- Version 4.0(2a) is affected.
- Version 4.0(4g) is affected.
- Version 4.0(2e) is affected.
- Version 4.0(4c) is affected.
- Version 4.0(4f) is affected.
- Version 4.0(1b) is affected.
- Version 4.0(2b) is affected.
- Version 4.0(2d) is affected.
- Version 4.1(1b) is affected.
- Version 4.0(4d) is affected.
- Version 4.0(4e) is affected.
- Version 4.0(4b) is affected.
- Version 4.1(2a) is affected.
- Version 4.1(1d) is affected.
- Version 4.0(4i) is affected.
- Version 4.1(1e) is affected.
- Version 4.1(2b) is affected.
- Version 4.0(4k) is affected.
- Version 4.1(3a) is affected.
- Version 4.1(3b) is affected.
- Version 4.1(2c) is affected.
- Version 4.0(4l) is affected.
- Version 4.1(4a) is affected.
- Version 4.1(3c) is affected.
- Version 4.1(3d) is affected.
- Version 4.2(1c) is affected.
- Version 4.2(1d) is affected.
- Version 4.0(4m) is affected.
- Version 4.1(3e) is affected.
- Version 4.2(1f) is affected.
- Version 4.1(3f) is affected.
- Version 4.2(1i) is affected.
- Version 4.1(3h) is affected.
- Version 4.2(1k) is affected.
- Version 4.2(1l) is affected.
- Version 4.0(4n) is affected.
- Version 4.2(1m) is affected.
- Version 4.1(3i) is affected.
- Version 4.2(2a) is affected.
- Version 4.2(1n) is affected.
- Version 4.1(3j) is affected.
- Version 4.2(2c) is affected.
- Version 4.2(2d) is affected.
- Version 4.2(3b) is affected.
- Version 4.1(3k) is affected.
- Version 4.0(4o) is affected.
- Version 4.2(2e) is affected.
- Version 4.2(3d) is affected.
- Version 4.2(3e) is affected.
- Version 4.2(3g) is affected.
- Version 4.1(3l) is affected.
- Version 4.3(2b) is affected.
- Version 4.2(3h) is affected.
- Version 4.2(3i) is affected.
- Version 4.3(2c) is affected.
- Version 4.1(3m) is affected.
- Version 4.3(2e) is affected.
- Version 4.3(3a) is affected.
- Version 4.2(3j) is affected.
- Version 4.3(3c) is affected.
- Version 4.3(4a) is affected.
- Version 4.2(3k) is affected.
- Version 4.3(4b) is affected.
- Version 4.3(4c) is affected.
- Version 4.2(3l) is affected.
- Version 4.3(4d) is affected.
- Version 4.3(2f) is affected.
- Version 4.2(3m) is affected.
- Version 4.3(5a) is affected.
- Version 4.3(4e) is affected.
- Version 4.1(3n) is affected.
- Version 4.3(4f) is affected.
- Version 4.2(3n) is affected.
- Version 4.3(5c) is affected.
- Version 4.2(3o) is affected.
- Version 4.3(5d) is affected.
- Version 4.3(6a) is affected.
- Version 4.3(6b) is affected.
- Version 4.3(5e) is affected.
- Version 4.3(6c) is affected.
- Version 6.0(1b) is affected.
- Version 4.2(3p) is affected.
- Version 6.0(1c) is affected.
- Version 4.3(6d) is affected.
- Version 6.0(1d) is affected.
- Version 6.0(1e) is affected.
- Version 4.3(6e) is affected.
- Version 6.0(1f) is affected.