CVE-2015-1647

Virtual Machine Manager (VMM) in Hyper-V in Microsoft Windows 8.1 and Windows Server 2012 R2 allows guest OS users to cause a denial of service (VMM functionality loss) via a crafted application, aka "Windows Hyper-V DoS Vulnerability."

Published: 2015-04-14 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

NVD Status：Modified，CVE State: published

View at NVD, CVE.org, EUVD

Conclusion & alert: CVE-2015-1647 is rated Low Risk (36.2/100): CVSS Low severity, with medium exploitation likelihood (EPSS 1.79%). Core evidence: EPSS rose +1.35% over the last day, indicating growing attacker interest. Mandatory action: 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-2015-1647

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	0.44%	1.79%	+1.35%
2	2025-05-07	0.50%	0.44%	-0.06%
3	2025-03-30	—	0.50%	—

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-1647

CVSS metrics for this CVE.

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
2.1	2.0	LOW	`AV:L/AC:L/Au:N/C:N/I:N/A:P` Click to expand Access vector (AV:L) Requires local access to the target system. Access complexity (AC:L) Exploitation conditions are straightforward and predictable. Authentication (AU:N) No authentication is required. Confidentiality impact (C:N) No confidentiality impact. Integrity impact (I:N) No integrity impact. Availability impact (A:P) Partial availability impact.	3.9	2.9	[email protected]

Weakness enumeration for CVE-2015-1647

CWE-20 MITRE ↗

Affected software / configurations for CVE-2015-1647

Vendor	Product	Version	Raw CPE
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-2015-1647

URL	Tags
http://www.securitytracker.com/id/1032117	Third Party Advisory VDB Entry
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-042	Patch Vendor Advisory

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