Cisco UCS Central Software Vulnerable to Authenticated Remote Code Execution
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Cisco has disclosed a vulnerability (CVE-2026-76506) in the web-based management interface of Cisco UCS Central Software that could allow an authenticated, remote attacker to achieve remote code execution or disclose sensitive information on an affected device. The flaw stems from insufficient validation of user-supplied input in HTTP requests. An attacker with valid low-privileged credentials could send a crafted HTTP request to an affected endpoint to execute arbitrary commands, write arbitrary files to the filesystem, and obtain sensitive information. Cisco rates this a High-severity issue and has released software updates; no workarounds are available.
Entenda a falha
A vulnerabilidade
CVE-2026-76506 is a High-severity flaw in the web-based management interface of Cisco UCS Central Software. An attacker needs network reach to the interface and valid user credentials, and low privileges are enough according to the story. By sending a crafted HTTP request to an affected endpoint, they can run arbitrary commands, write arbitrary files to the filesystem and obtain sensitive information. Cisco has released software updates and says there are no workarounds. The articles do not list affected or fixed version numbers, so check the Cisco advisory cisco-sa-cucs-rce-LzHSFRDQ.
Como funciona
An authenticated user sends an HTTP request to an endpoint of the UCS Central web management interface. The software takes the user-supplied input in that request and processes it without validating it sufficiently. Because of this, the input can lead to command execution, file writes on the filesystem or disclosure of sensitive data. The articles do not say which endpoint, parameter or internal component handles the input.
Por que é vulnerável
According to Cisco, the root cause is insufficient validation of user-supplied input in an HTTP request. The web interface trusts input from an authenticated user more than it should, which lets that input affect commands and file operations on the system. The articles do not say why it went unnoticed or exactly what the fix changes, only that Cisco's software updates address it.
Como foi descoberta
The articles do not say who found the flaw or how. Cisco disclosed it in the security advisory cisco-sa-cucs-rce-LzHSFRDQ, published on 2026-11-04, together with software updates. The articles do not mention exploitation in the wild.
Explicação gerada por IA a partir da matéria e dos artigos, em 04/11/2026 14:17.
Detalhes técnicos
The vulnerability resides in the web-based management interface of Cisco UCS Central Software. Exploitation requires an authenticated attacker to craft a malicious HTTP request to a vulnerable endpoint, leading to arbitrary command execution, arbitrary file writes, and information disclosure.
Remediação
Cisco has released software updates addressing CVE-2026-76506. No mitigating workarounds exist, so affected organizations should apply the vendor's patches as soon as possible.
Linha do tempo
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sec.cloudapps.cisco.com ↗ · pub. 04/11/2026 13:00 · coletado 04/11 14:00 primeiro registro só resumo do feed
Cisco UCS Central Software Vulnerable to Authenticated Remote Code Execution
ler a análise desta fonte ocultar
Cisco has disclosed a vulnerability (CVE-2026-76506) in the web-based management interface of Cisco UCS Central Software that could allow an authenticated, remote attacker to achieve remote code execution or disclose sensitive information on an affected device. The flaw stems from insufficient validation of user-supplied input in HTTP requests. An attacker with valid low-privileged credentials could send a crafted HTTP request to an affected endpoint to execute arbitrary commands, write arbitrary files to the filesystem, and obtain sensitive information. Cisco rates this a High-severity issue and has released software updates; no workarounds are available.
Technical Details
The vulnerability resides in the web-based management interface of Cisco UCS Central Software. Exploitation requires an authenticated attacker to craft a malicious HTTP request to a vulnerable endpoint, leading to arbitrary command execution, arbitrary file writes, and information disclosure.
Remediation
Cisco has released software updates addressing CVE-2026-76506. No mitigating workarounds exist, so affected organizations should apply the vendor's patches as soon as possible.