Cisco Unified Computing System Central Remote Code Execution Vulnerability
Affects Cisco Unified Computing System Central Software regardless of device configuration. No fixed release is given in the checked facts.
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
- Exploited
- No known exploitation
- Fix
- No fix listed
- Who is exposed
- Specific setups only
Do first: Check whether your setup matches what the bug needs. Affects Cisco UCS Central Software regardless of device configuration
- Exploitation0/40No signal
- Exposure8/25Specific setups only, reachable over the network
- Reach?/20Reach: unknown (data gap). No tracked technology or package matched
- Severity8.6/10CVSS 7.6, total technical impact per CISA
- No patch5/5No patch listed yet
What would change the score
- Would score about 72 if added to CISA KEV
- Would score about 67 if CISA's SSVC rates exploitation active
- Would score about 29 if CISA's SSVC rates it automatable
CVE-2026-76506 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 7.6 (high) and affects Cisco Unified Computing System Central Software; no fixed version is listed yet.
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- Published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 22/100 · provisional
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Specific setups only
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
Cisco UCS Central Software's web-based management interface contains a flaw that lets an attacker who has valid user credentials run arbitrary commands, write files to the system, and obtain sensitive information. The attacker can reach it remotely over the network by sending a crafted HTTP request to an affected endpoint.
Read the original description
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.
What to do
Check whether your setup matches what the bug needs.
Affects Cisco UCS Central Software regardless of device configurationWorkaround: The checked facts do not list a workaround. Cisco's advisory is the place to confirm any interim mitigation while no fix is available.
Timeline
- CVE published
- First seen by cve.now
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- Cisco Cisco Unified Computing System Central Software
2.0(1e), 2.0(1a), 2.0(1h), 2.0(1g), 2.0(1c), 2.0(1k), 2.0(1l), 2.0(1f), 2.0(1j), 2.0(1b), 2.0(1i), 2.0(1d), 2.0(1m), 2.0(1n), 2.0(1o), 2.0(1p), 2.0(1q), 2.0(1r), 2.0(1s), 2.0(1t), 2.0(1u), 2.0(1v), 2.0(1w), 2.1(1a), 2.1(1b), 2.1(1c), 2.1(2a), 2.1(2b)
Evidence 1
- Link
Corrections
None so far.
Something wrong on this page? Report an error. Every fix is listed here.
Questions about CVE-2026-76506
Is CVE-2026-76506 being exploited?
It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data
What does this mean?
An authenticated remote attacker could execute arbitrary commands, write arbitrary files to the filesystem, and obtain sensitive information. The flaw is a remote code execution bug in Cisco UCS Central Software.Source: sec.cloudapps.cisco.com
Which versions are affected by CVE-2026-76506?
Cisco Unified Computing System Central Software: versions 2.0(1e), 2.0(1a), 2.0(1h), 2.0(1g), 2.0(1c) and 23 more.Source: cve.now feed data
Am I affected, and how do I check?
The checked facts say the bug affects Cisco UCS Central Software regardless of device configuration, but they list no affected version ranges. Compare the installed UCS Central version against the versions named in Cisco's advisory.Source: sec.cloudapps.cisco.com
How do I fix CVE-2026-76506?
The checked facts do not name a fixed release, so the upgrade target is not confirmed here. Check Cisco's advisory for the fixed version.Source: sec.cloudapps.cisco.com
What if there's no patch?
The checked facts do not list a workaround. Cisco's advisory is the place to confirm any interim mitigation while no fix is available.Source: sec.cloudapps.cisco.com