Remote Cmd Exec & PLE via Cisco IMC Web UI
CVE-2026-20200 Published on August 5, 2026
Cisco Integrated Management Controller Argument Injection and Remote Code Execution Vulnerability
A vulnerability in the web-based management interface of Cisco IMC could allow an authenticated, remote attacker with low privileges to execute arbitrary commands on the underlying operating system of an affected system and elevate privileges to root.
This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by entering crafted inputs to the web-based management interface of the affected software. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system as the root user.
Vulnerability Analysis
CVE-2026-20200 is exploitable with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
Improper Neutralization of Parameter/Argument Delimiters
The software receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as parameter or argument delimiters when they are sent to a downstream component. As data is parsed, an injected/absent/malformed delimiter may cause the process to take unexpected actions.
Products Associated with CVE-2026-20200
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Affected Versions
Cisco Unified Computing System (Standalone):- Version 4.3(1.230097) is affected.
- Version 4.3(1.230124) is affected.
- Version 4.3(1.230138) is affected.
- Version 4.3(2.230207) is affected.
- Version 4.3(2.230270) is affected.
- Version 4.3(2.240002) is affected.
- Version 4.3(3.240022) is affected.
- Version 4.3(3.240043) is affected.
- Version 4.3(4.240142) is affected.
- Version 4.3(4.240152) is affected.
- Version 4.3(4.242028) is affected.
- Version 4.3(4.241063) is affected.
- Version 4.3(4.242038) is affected.
- Version 4.3(5.240021) is affected.
- Version 4.3(4.242066) is affected.
- Version 4.3(5.250001) is affected.
- Version 4.3(5.250030) is affected.
- Version 4.3(6.250040) is affected.
- Version 4.3(5.250033) is affected.
- Version 4.3(6.250044) is affected.
- Version 4.3(6.250053) is affected.
- Version 4.3(4.252001) is affected.
- Version 4.3(4.252002) is affected.
- Version 6.0(1.250127) is affected.
- Version 6.0(1.250131) is affected.
- Version 4.3(6.250101) is affected.
- Version 6.0(1.250174) is affected.
- Version 4.3(6.250117) is affected.
- Version 4.3(5.250043) is affected.
- Version 4.3(6.250039) is affected.
- Version 4.3(5.250045) is affected.
- Version 4.3(6.250060) is affected.
- Version 6.0(1.250130) is affected.
- Version 4.3(4.241014) is affected.
- Version 6.0(1.250192) is affected.
- Version 4.3(6.260003) is affected.
- Version 6.0(1.250194) is affected.
- Version 4.3(6.260017) is affected.