CVE-2026-76506: RCE via Input Validation in Cisco UCS Central Web
CVE-2026-76506 Published on November 4, 2026
Cisco Unified Computing System Central Remote Code Execution Vulnerability
A vulnerability in the web-based management interface of Cisco UCS Central Software could allow an authenticated, remote attacker to achieve remote code execution or conduct information disclosure attacks on an affected device.
This vulnerability is due to insufficient validation of user-supplied input in an HTTP request. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected endpoint on an affected device. A successful exploit could allow the attacker to execute arbitrary commands, write arbitrary files to the filesystem, and obtain sensitive information. To exploit this vulnerability, the attacker must have valid user credentials on the affected device.
Cisco has released software updates that address this vulnerability There are no workarounds that address this vulnerability.
Vulnerability Analysis
CVE-2026-76506 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 have a high impact on confidentiality, with no impact on integrity and availability.
Weakness Type
What is a Directory traversal Vulnerability?
The software uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the software does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
CVE-2026-76506 has been classified to as a Directory traversal vulnerability or weakness.
Products Associated with CVE-2026-76506
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Affected Versions
Cisco Unified Computing System Central Software:- Version 2.0(1e) is affected.
- Version 2.0(1a) is affected.
- Version 2.0(1h) is affected.
- Version 2.0(1g) is affected.
- Version 2.0(1c) is affected.
- Version 2.0(1k) is affected.
- Version 2.0(1l) is affected.
- Version 2.0(1f) is affected.
- Version 2.0(1j) is affected.
- Version 2.0(1b) is affected.
- Version 2.0(1i) is affected.
- Version 2.0(1d) is affected.
- Version 2.0(1m) is affected.
- Version 2.0(1n) is affected.
- Version 2.0(1o) is affected.
- Version 2.0(1p) is affected.
- Version 2.0(1q) is affected.
- Version 2.0(1r) is affected.
- Version 2.0(1s) is affected.
- Version 2.0(1t) is affected.
- Version 2.0(1u) is affected.
- Version 2.0(1v) is affected.
- Version 2.0(1w) is affected.
- Version 2.1(1a) is affected.
- Version 2.1(1b) is affected.
- Version 2.1(1c) is affected.
- Version 2.1(2a) is affected.
- Version 2.1(2b) is affected.