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CVE-2020-3247

65
FAUCET Score

CVE-2020-3247 describes multiple critical vulnerabilities in the REST API of Cisco UCS Director and Cisco UCS Director Express for Big Data. These flaws, including authentication bypass and directory traversal, allow a remote attacker to gain full control over affected devices. With a CVSS score of 9.8 (CRITICAL), the vulnerability is easily exploitable over the network with no user interaction, leading to complete compromise of confidentiality, integrity, and availability. Despite its high severity and EPSS score, there is currently no public exploit code available, and it has not been observed in active exploitation or discussed within the cybersecurity community.

Impacted Technologies

VendorProductVersion(s)CPE
6.0.0.0CPE matchmatch criteria
cpe:2.3:a:cisco:ucs_director:6.0.0.0:*:*:*:*:*:*:*
6.0.0.1CPE matchmatch criteria
cpe:2.3:a:cisco:ucs_director:6.0.0.1:*:*:*:*:*:*:*
6.0.1.0CPE matchmatch criteria
cpe:2.3:a:cisco:ucs_director:6.0.1.0:*:*:*:*:*:*:*
6.0.1.1CPE matchmatch criteria
cpe:2.3:a:cisco:ucs_director:6.0.1.1:*:*:*:*:*:*:*
6.0.1.2CPE matchmatch criteria
cpe:2.3:a:cisco:ucs_director:6.0.1.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
75.07%
Probability of exploitation in next 30 days
EPSS Percentile
99.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.7507 is in the 98th percentile among its peer group of 36,897 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-ucsd-mult-vulns-UNfpdW4E
Vendor Advisory
zerodayinitiative.com / advisories/ZDI-20-541
Third Party AdvisoryVDB Entry