Cisco UCS Central: RCE

Cisco UCS Central Software

Cisco UCS Central Software is vulnerable to remote code execution due to insufficient input validation.

Do this now

Apply the vendor’s fixed release from the advisory.

Who should check: teams running VPN & firewalls

First seen: 4 Nov 2026
Last update: 4 Nov 2026, 16:18 UTC
Identifiers: CVE-2026-76506 ID not published yet
Source: news
On the menu as: VPN & firewalls

Check this repository for exposure to one security incident from pwned.coffee. Report first, change nothing until I say so.

## Cisco UCS Central: RCE
Severity: unknown. Patch status: patched.
Affected: Cisco UCS Central Software
Ids: CVE-2026-76506

Cisco UCS Central Software is vulnerable to remote code execution due to insufficient input validation.

## Steps
1. This touches infrastructure (vpn-edge). Look in terraform, ansible, cloud-init, Dockerfiles and docs for the product and version we run. If it isn't in the repo, say so and list what a human should check on the box.

## Report
A table: file, product or package, version in use, affected yes/no, exact fix. Then anything a human has to check outside the repo.

If you have the pwned.coffee MCP server (https://pwned.coffee/mcp), call lookup_cve("CVE-2026-76506") for the latest, and check_repo with this repo's lockfiles, Dockerfiles and workflows for a full receipt.
Sources: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucs-rce-LzHSFRDQ?vs_f=Cisco%20Security%20Advisory%26vs_cat=Security%20Intelligence%26vs_type=RSS%26vs_p=Cisco%20UCS%20Central%20Software%20Remote%20Code%20Execution%20Vulnerability%26vs_k=1
https://pwned.coffee/i/cisco-ucs-central-rce-cve-2026-76506

Receipt

Exploitation: No known exploitation
Fix: Cisco has released software updates that address this vulnerability There are no workarounds that address this vulnerability.
Score: No CVSS published yet: severity unknown.
Last checked: 4 Nov 2026, 17:17 UTC

Sources: KEV – CVE record – Vendor ✓

Sources

sec.cloudapps.cisco.com: Cisco UCS Central Software Remote Code Execution Vulnerability

Totalone coffee