CVE-2015-4259 — The Integrated Management Controller on Cisco Unified Computing System (UCS) C servers with software 1.5(3) and 1.6(0.16) has a default SSL certificate, which makes it easier for man-in-the-middle attackers to bypass cryptographic protection mechanisms by leveraging knowledge of a private key, aka Bug IDs CSCum56133 and CSCum56177

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MEDIUM

The Integrated Management Controller on Cisco Unified Computing System (UCS) C servers with software 1.5(3) and 1.6(0.16) has a default SSL certificate, which makes it easier for man-in-the-middle attackers to bypass cryptographic protection mechanisms by leveraging knowledge of a private key, aka Bug IDs CSCum56133 and CSCum56177

Published Jul 10, 2015

4.3

MEDIUM

CVSS 2.0

EPSS 0.78%

Description

The Integrated Management Controller on Cisco Unified Computing System (UCS) C servers with software 1.5(3) and 1.6(0.16) has a default SSL certificate, which makes it easier for man-in-the-middle attackers to bypass cryptographic protection mechanisms by leveraging knowledge of a private key, aka Bug IDs CSCum56133 and CSCum56177.

Affected products

Remediation

No remediation recorded yet.

Metrics

0.78% 0.00775

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

EPSS probability 0.00775

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	0.78% (0.00775)	54.13th	v5 (v2026.06.15)
Jun 15, 2026	0.78% (0.00775)	50.79th	v5 (v2026.06.15)
Mar 17, 2025	0.13% (0.00126)	29.37th	v4 (v2025.03.14)
Dec 12, 2024	0.07% (0.00067)	31.44th	v3 (v2023.03.01)
Jun 11, 2024	0.07% (0.00067)	29.26th	v3 (v2023.03.01)
Mar 7, 2023	0.07% (0.00067)	27.26th	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-310

References (2)

http://tools.cisco.com/security/center/viewAlert.x?alertId=39803
vendor-advisoryx_refsource_CISCOVendor Advisory
http://www.securitytracker.com/id/1032872
vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry

Link	Providers	Tags
http://tools.cisco.com/security/center/viewAlert.x?alertId=39803		vendor-advisoryx_refsource_CISCOVendor Advisory
http://www.securitytracker.com/id/1032872		vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner cisco

Published Jul 10, 2015

Updated Aug 6, 2024

Reserved Jun 4, 2015

Link CVE-2015-4259

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2015-4259

Red Hat

Severity n/a

Public date n/a

Links CVE-2015-4259