CVE-2012-4074 — The Board Management Controller (BMC) in the Serial over LAN (SoL) subsystem in Cisco Unified Computing System (UCS) relies on a hardcoded private key, which allows man-in-the-middle attackers to obtain sensitive information or modify the data stream by leveraging knowledge of this key, aka Bug ID CSCte90338

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MEDIUM

The Board Management Controller (BMC) in the Serial over LAN (SoL) subsystem in Cisco Unified Computing System (UCS) relies on a hardcoded private key, which allows man-in-the-middle attackers to obtain sensitive information or modify the data stream by leveraging knowledge of this key, aka Bug ID CSCte90338

Published Sep 20, 2013

5.8

MEDIUM

CVSS 2.0

EPSS 1.22%

Description

The Board Management Controller (BMC) in the Serial over LAN (SoL) subsystem in Cisco Unified Computing System (UCS) relies on a hardcoded private key, which allows man-in-the-middle attackers to obtain sensitive information or modify the data stream by leveraging knowledge of this key, aka Bug ID CSCte90338.

Affected products

Remediation

No remediation recorded yet.

Metrics

1.22% 0.01217

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

EPSS probability 0.01217

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	1.22% (0.01217)	67.50th	v5 (v2026.06.15)
Jun 15, 2026	1.22% (0.01217)	64.53th	v5 (v2026.06.15)
Mar 17, 2025	0.33% (0.00327)	53.39th	v4 (v2025.03.14)
Dec 12, 2024	0.13% (0.00129)	49.36th	v3 (v2023.03.01)
Jun 14, 2024	0.13% (0.00129)	47.97th	v3 (v2023.03.01)
Mar 7, 2023	0.13% (0.00129)	45.93th	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-255

References (2)

http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2012-4074
vendor-advisoryx_refsource_CISCOVendor Advisory
http://www.securitytracker.com/id/1029073
vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry

Link	Providers	Tags
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2012-4074		vendor-advisoryx_refsource_CISCOVendor Advisory
http://www.securitytracker.com/id/1029073		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-2012-4074

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2012-4074

Red Hat

Severity n/a

Public date n/a

Links CVE-2012-4074