Multiple Vulnerabilities in Cisco UCS Director and Cisco UCS Director Express for Big Data
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.
Noroxi analysis
No Noroxi analysis for this record yet
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We use this product, ask for help- Published
- Apr 15, 2020
- Updated
- Jun 16, 2026
- EPSS
- 88.4% · 100th percentile
- CWE
- CWE-20
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Report tools
Action score
66
This week
Don’t wait for the next maintenance window.
- CVSS
- 39 / 40 · 9.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 27 / 30 · 88.4%
CISA SSVC decision
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- 9.8
- CNA · cisco
- 9.8
- agree
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| cisco | ucs director | cpe:2.3:a:cisco:ucs_director |
| cisco | ucs director express for big data | cpe:2.3:a:cisco:ucs_director_express_for_big_data |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- cisco ucs director6.0.0.0
- cisco ucs director6.0.0.1
- cisco ucs director6.0.1.0
- cisco ucs director6.0.1.1
- cisco ucs director6.0.1.2
- cisco ucs director6.0.1.3
- cisco ucs director6.5.0.0
- cisco ucs director6.5.0.1
- cisco ucs director6.5.0.2
- cisco ucs director6.5.0.3
- cisco ucs director6.5.0.4
- cisco ucs director6.6.0.0
- cisco ucs director6.6.1.0
- cisco ucs director6.6.2.0
- cisco ucs director6.7.0.0
- cisco ucs director6.7.1.0
- cisco ucs director6.7.2.0
- cisco ucs director6.7.3.0
- cisco ucs director express for big dataup to 3.7.3.0 inclusive
Versions reported by the vendor
Affected version ranges reported by the assigning authority (cisco). Independent of NVD's CPE analysis and usually ahead of it.
Cisco Cisco UCS Director
- n/aaffected
Same product
cisco: all recordsOther highest-scoring records for the same primary product.
- CVE-2020-3247Multiple Vulnerabilities in Cisco UCS Director and Cisco UCS Director Express for Big Data62This week
- CVE-2020-3248Multiple Vulnerabilities in Cisco UCS Director and Cisco UCS Director Express for Big Data61This week
- CVE-2020-3250Multiple Vulnerabilities in Cisco UCS Director and Cisco UCS Director Express for Big Data57Plan
- CVE-2020-3239Multiple Vulnerabilities in Cisco UCS Director and Cisco UCS Director Express for Big Data57Plan
- CVE-2020-3251Multiple Vulnerabilities in Cisco UCS Director and Cisco UCS Director Express for Big Data53Plan
- CVE-2020-3240Multiple Vulnerabilities in Cisco UCS Director and Cisco UCS Director Express for Big Data41Plan
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
Weaponized
A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.
Evidence
- Metasploit module ×1
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Metasploit module | exploit/linux/http/cisco_ucs_cloupia_script_rceCisco UCS Director Cloupia Script RCEexploit | 2020-04-15 |
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
- Metasploit-1 d
- Published
- TodaySep 30, 2026+2359 d
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-20 · Improper Input ValidationCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- Buffer Overflow via Environment VariablesCAPEC-10likelihood: High · High
- Server Side Include (SSI) InjectionCAPEC-101likelihood: High · High
- Cross Zone ScriptingCAPEC-104likelihood: Medium · High
- Command Line Execution through SQL InjectionCAPEC-108likelihood: Low · Very High
- Object Relational Mapping InjectionCAPEC-109likelihood: Low · High
- SQL Injection through SOAP Parameter TamperingCAPEC-110likelihood: High · Very High
- Double EncodingCAPEC-120likelihood: Low · Medium
- Subverting Environment Variable ValuesCAPEC-13likelihood: High · Very High
ATT&CK techniques
- Obfuscated Files or InformationT1027
- Masquerading: Invalid Code SignatureT1036.001
- Steal Web Session CookieT1539
- Subvert Trust Controls: Code SigningT1553.002
- Impair Defenses:Impair Command History LoggingT1562.003
- Hijack Execution Flow:Dynamic Linker HijackingT1574.006
- Hijack Execution Flow:Path Interception by PATH Environment VariableT1574.007
Change log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
- packetstormsecurity.com/files/157955/Cisco-UCS-Director-Cloupia-Script-Remote-Code-Execution.html
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucsd-mult-vulns-UNfpdW4E
- www.zerodayinitiative.com/advisories/ZDI-20-540/
Vendor advisories and official records. Exploit/PoC links are deliberately left out.