Microsoft Windows Server 2003 R2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Ser…

published 2015-04-14 11y ago modified 2026-06-17 4mo ago also EUVD-2015-1773

cvss: 7.2; version 2.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 2.7%; EPSS 2.7% chance of exploitation in 30 days, percentile 86%
public exploits: 0; none known

Microsoft Windows Server 2003 R2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 do not properly constrain impersonation levels, which allows local users to gain privileges via a crafted application, aka "NtCreateTransactionManager Type Confusion Vulnerability."

Patch / fix

links 1

docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-038 advisory

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Exploit prediction

2.72% chance of exploitation in the next 30 days, higher than 86% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	2.0	7.2	AV:L/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness

CWE-264 Permissions, Privileges, and Access Controls

References

docs.microsoft.com /en-us/security-updates/securitybulletins/2015/ms15-038
vendor-advisory, patch
securitytracker.com /id/1032113
vdb-entry, third-party-advisory

Sources

CVE List CVE-2015-1643
NVD CVE-2015-1643

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.