CVE-2012-4117

The fabric-interconnect component in Cisco Unified Computing System (UCS) does not properly verify X.509 certificates, which allows man-in-the-middle attackers to watch SSL KVM video-channel traffic or modify this traffic via a crafted certificate, aka Bug ID CSCtr73033.

Published: 2013-10-19 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

NVD Status：Modified，CVE State: published

View at NVD, CVE.org, EUVD

Conclusion & alert: CVE-2012-4117 is rated Low Risk (37.7/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.53%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2012-4117

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.14%	0.53%	+0.39%
2	2025-03-30	0.16%	0.14%	-0.03%
3	2025-03-29	—	0.16%	—

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-4117

CVSS metrics for this CVE.

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
5.8	2.0	MEDIUM	`AV:N/AC:M/Au:N/C:P/I:P/A:N` Click to expand Access vector (AV:N) Can be exploited remotely over network reachability. Access complexity (AC:M) Exploitation needs some favorable conditions, but not exceptional ones. Authentication (AU:N) No authentication is required. Confidentiality impact (C:P) Partial confidentiality impact. Integrity impact (I:P) Partial integrity impact. Availability impact (A:N) No availability impact.	8.6	4.9	[email protected]

Weakness enumeration for CVE-2012-4117

CWE-20 MITRE ↗

Affected software / configurations for CVE-2012-4117

Vendor	Product	Version	Raw CPE
cisco	unified_computing_system	—	cpe:2.3:h:cisco:unified_computing_system:-:::::::*

References for CVE-2012-4117

URL	Tags
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2012-4117	Vendor Advisory

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