CVE-2012-4072 — The KVM subsystem in Cisco Unified Computing System (UCS) relies on a hardcoded X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers, and read keyboard and mouse events, by leveraging knowledge of this certificate's private key, aka Bug ID CSCte90327

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MEDIUM

The KVM subsystem in Cisco Unified Computing System (UCS) relies on a hardcoded X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers, and read keyboard and mouse events, by leveraging knowledge of this certificate's private key, aka Bug ID CSCte90327

Published Sep 20, 2013

4.3

MEDIUM

CVSS 2.0

EPSS 0.61%

Description

The KVM subsystem in Cisco Unified Computing System (UCS) relies on a hardcoded X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers, and read keyboard and mouse events, by leveraging knowledge of this certificate's private key, aka Bug ID CSCte90327.

Affected products

Remediation

No remediation recorded yet.

Metrics

0.61% 0.00609

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00609

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (10 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.61% (0.00609)	47.22th	v5 (v2026.06.15)
Jun 15, 2026	0.61% (0.00609)	44.28th	v5 (v2026.06.15)
Mar 17, 2025	0.18% (0.00181)	37.58th	v4 (v2025.03.14)
Dec 12, 2024	0.09% (0.00089)	39.84th	v3 (v2023.03.01)
Jun 26, 2024	0.09% (0.00089)	38.45th	v3 (v2023.03.01)
Mar 7, 2023	0.09% (0.00089)	36.43th	v3 (v2023.03.01)
Mar 6, 2023	0.89% (0.00885)	27.89th	v2 (v2022.01.01)
Sep 10, 2022	0.89% (0.00885)	26.24th	v2 (v2022.01.01)
Apr 1, 2022	0.89% (0.00885)	24.24th	v2 (v2022.01.01)
Feb 4, 2022	0.89% (0.00885)	10.50th	v2 (v2022.01.01)

Weaknesses (1)

CWE-20

Improper Input Validation

References (2)

http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2012-4072
vendor-advisoryx_refsource_CISCOVendor Advisory
http://www.securitytracker.com/id/1029067
vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry

Link	Providers	Tags
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2012-4072		vendor-advisoryx_refsource_CISCOVendor Advisory
http://www.securitytracker.com/id/1029067		vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner cisco

Published Sep 20, 2013

Updated Aug 6, 2024

Reserved Jul 31, 2012

Link CVE-2012-4072

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2012-4072

Red Hat

Severity n/a

Public date n/a

Links CVE-2012-4072