Is CVE-2026-76506 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-76506 being exploited in the wild.

How severe is CVE-2026-76506?

High severity, with a CVSS score of 7.6, published 4 November 2026.

Which products and versions are affected?

Cisco UCS Central Software 2.0 and earlier.

Is there a fix for CVE-2026-76506?

Yes: fixed in 2.1(2c). Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-76506 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-76506?

Check whether you run Cisco UCS Central Software at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-76506: Cisco UCS Central Software input validation vulnerability

CVE-2026-76506 · Severity: high · CVSS 7.6 · Published 2026-11-04

Cisco UCS Central is the management software for unified computing infrastructure. An authenticated attacker can send specially crafted web requests to bypass input validation, allowing them to execute arbitrary commands, modify files, or access sensitive information. The attack requires valid login credentials and could give an attacker complete control over the system.

Vendors: Cisco.

Quick answers

Is CVE-2026-76506 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-76506 being exploited in the wild.
How severe is CVE-2026-76506?: High severity, with a CVSS score of 7.6, published 4 November 2026.
Which products and versions are affected?: Cisco UCS Central Software 2.0 and earlier.
Is there a fix for CVE-2026-76506?: Yes: fixed in 2.1(2c). Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-76506 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-76506?: Check whether you run Cisco UCS Central Software at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: 2.1(2c)

Technical details

Insufficient input validation in the web-based management interface allows authenticated remote code execution via crafted HTTP requests. An authenticated attacker with valid credentials can exploit this vulnerability to execute arbitrary commands, write files to the filesystem, and disclose sensitive information. A fix is available in release 2.1(2c) and later.

Affected products

Cisco UCS Central Software 2.0 and earlier

Timeline

2026-11-04: disclosed

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucs-rce-LzHSFRDQ

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