CVE-2015-2552 — The kernel in Microsoft Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT Gold and 8.1, and Windows 10 allows physically proximate attackers to bypass the Trusted Boot protection mechanism, and consequently interfere with the integrity of code, BitLocker, Device Encryption, and Device Health Attestation, via a crafted Boot Configuration Data (BCD) setting, aka "Trusted Boot Security Feature Bypass Vulnerability."

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HIGH

The kernel in Microsoft Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT Gold and 8.1, and Windows 10 allows physically proximate attackers to bypass the Trusted Boot protection mechanism, and consequently interfere with the integrity of code, BitLocker, Device Encryption, and Device Health Attestation, via a crafted Boot Configuration Data (BCD) setting, aka "Trusted Boot Security Feature Bypass Vulnerability."

Published Oct 14, 2015

7.2

HIGH

CVSS 2.0

EPSS 1.67%

Description

The kernel in Microsoft Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT Gold and 8.1, and Windows 10 allows physically proximate attackers to bypass the Trusted Boot protection mechanism, and consequently interfere with the integrity of code, BitLocker, Device Encryption, and Device Health Attestation, via a crafted Boot Configuration Data (BCD) setting, aka "Trusted Boot Security Feature Bypass Vulnerability."

Remediation

No remediation recorded yet.

Metrics

1.67% 0.01672

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

EPSS probability 0.01672

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 (12 key points)

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

Date	Score	Percentile	Model
Oct 1, 2026	1.67% (0.01672)	75.96th	v5 (v2026.06.15)
Jun 15, 2026	1.67% (0.01672)	73.72th	v5 (v2026.06.15)
Mar 30, 2025	1.96% (0.01964)	81.88th	v4 (v2025.03.14)
Mar 29, 2025	0.34% (0.00341)	40.07th	v4 (v2025.03.14)
Mar 17, 2025	1.96% (0.01964)	82.31th	v4 (v2025.03.14)
Dec 17, 2024	1.49% (0.01485)	86.52th	v3 (v2023.03.01)
Jun 28, 2024	0.11% (0.00111)	44.65th	v3 (v2023.03.01)
Mar 25, 2023	0.11% (0.00111)	42.64th	v3 (v2023.03.01)
Mar 7, 2023	0.13% (0.00128)	45.73th	v3 (v2023.03.01)
Mar 6, 2023	2.08% (0.02084)	79.92th	v2 (v2022.01.01)
Apr 1, 2022	2.08% (0.02084)	78.00th	v2 (v2022.01.01)
Feb 4, 2022	2.08% (0.02084)	56.70th	v2 (v2022.01.01)

Weaknesses (1)

CWE-254

References (4)

http://packetstormsecurity.com/files/133962/Microsoft-Trusted-Boot-Security-Feature-Bypass.html
x_refsource_MISCExploitThird Party AdvisoryVDB Entry
http://www.securityfocus.com/archive/1/536678/100/0/threaded
mailing-listx_refsource_BUGTRAQThird Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1033805
vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-111
vendor-advisoryx_refsource_MSPatchVendor Advisory

Link	Providers	Tags
http://packetstormsecurity.com/files/133962/Microsoft-Trusted-Boot-Security-Feature-Bypass.html		x_refsource_MISCExploitThird Party AdvisoryVDB Entry
http://www.securityfocus.com/archive/1/536678/100/0/threaded		mailing-listx_refsource_BUGTRAQThird Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1033805		vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-111		vendor-advisoryx_refsource_MSPatchVendor Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner microsoft

Published Oct 14, 2015

Updated Aug 6, 2024

Reserved Mar 19, 2015

Link CVE-2015-2552

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2015-2552

Red Hat

Severity n/a

Public date n/a

Links CVE-2015-2552