CVE-2015-2534 — Hyper-V in Microsoft Windows 8.1, Windows Server 2012 R2, and Windows 10 improperly processes ACL settings, which allows local users to bypass intended network-traffic restrictions via a crafted application, aka "Hyper-V Security Feature Bypass Vulnerability."

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LOW

Hyper-V in Microsoft Windows 8.1, Windows Server 2012 R2, and Windows 10 improperly processes ACL settings, which allows local users to bypass intended network-traffic restrictions via a crafted application, aka "Hyper-V Security Feature Bypass Vulnerability."

Published Sep 9, 2015

1.9

LOW

CVSS 2.0

EPSS 1.79%

Description

Hyper-V in Microsoft Windows 8.1, Windows Server 2012 R2, and Windows 10 improperly processes ACL settings, which allows local users to bypass intended network-traffic restrictions via a crafted application, aka "Hyper-V Security Feature Bypass Vulnerability."

Affected products

Remediation

No remediation recorded yet.

Metrics

1.79% 0.01788

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.

EPSS probability 0.01788

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 2, 2026	1.79% (0.01788)	77.56th	v5 (v2026.06.15)
Jun 15, 2026	1.92% (0.01922)	77.19th	v5 (v2026.06.15)
Mar 17, 2025	0.29% (0.00294)	50.68th	v4 (v2025.03.14)
Dec 12, 2024	0.04% (0.00043)	11.28th	v3 (v2023.03.01)
Jun 12, 2024	0.04% (0.00043)	9.42th	v3 (v2023.03.01)
Mar 7, 2023	0.04% (0.00043)	7.39th	v3 (v2023.03.01)
Mar 6, 2023	1.41% (0.01410)	72.96th	v2 (v2022.01.01)
Mar 2, 2023	1.41% (0.01410)	72.94th	v2 (v2022.01.01)
Apr 1, 2022	1.41% (0.01410)	70.94th	v2 (v2022.01.01)
Feb 4, 2022	1.41% (0.01410)	50.00th	v2 (v2022.01.01)

Weaknesses (1)

CWE-284

References (2)

http://www.securitytracker.com/id/1033496
vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-105
vendor-advisoryx_refsource_MSPatchVendor Advisory

Link	Providers	Tags
http://www.securitytracker.com/id/1033496		vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-105		vendor-advisoryx_refsource_MSPatchVendor Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner microsoft

Published Sep 9, 2015

Updated Aug 6, 2024

Reserved Mar 19, 2015

Link CVE-2015-2534

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2015-2534

Red Hat

Severity n/a

Public date n/a

Links CVE-2015-2534