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CVE-2020-3243: Multiple Vulnerabilities in Cisco UCS Director and Cisco UCS Director Express for Big Data

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 88.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-04-15 · updated 2026-06-17
• Weakness: CWE-20

Description

Multiple vulnerabilities in the REST API of Cisco UCS Director and Cisco UCS Director Express for Big Data may allow a remote attacker to bypass authentication or conduct directory traversal attacks on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.

Affected products

• Cisco UCS Director: 6.0.0.0, 6.0.0.1, 6.0.1.0, 6.0.1.1, 6.0.1.2, 6.0.1.3 (+12)
• Cisco Ucs Director Express For Big Data: through 3.7.3.0

References

• http://packetstormsecurity.com/files/157955/Cisco-UCS-Director-Cloupia-Script-Remote-Code-Execution.html
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucsd-mult-vulns-UNfpdW4E
• https://www.zerodayinitiative.com/advisories/ZDI-20-540/
• http://packetstormsecurity.com/files/157955/Cisco-UCS-Director-Cloupia-Script-Remote-Code-Execution.html
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucsd-mult-vulns-UNfpdW4E
• https://www.zerodayinitiative.com/advisories/ZDI-20-540/

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