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."

Published: 2015-09-09 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-2534 is rated Low Risk (35.9/100): CVSS Low severity, with medium exploitation likelihood (EPSS 1.92%). EPSS rose +1.33% over the last day, indicating growing attacker interest. Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2015-2534

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.60% 1.92% +1.33%
2 2025-06-15 0.32% 0.60% +0.28%
3 2025-03-30 — 0.32% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-2534

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
1.9 2.0 LOW
AV:L/AC:M/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 3.4 2.9 [email protected]

Weakness enumeration for CVE-2015-2534

Affected software / configurations for CVE-2015-2534

Vendor Product Version Raw CPE
microsoft windows_10 — cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:x64:*
microsoft windows_8.1 — cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:x64:*
microsoft windows_server_2012 r2 cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*

References for CVE-2015-2534

cvelogic Threat Intelligence