CVE-2015-2527
The process-initialization implementation in win32k.sys in the kernel-mode drivers in Microsoft Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT Gold and 8.1, and Windows 10 does not properly constrain impersonation levels, which…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (6.56%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The process-initialization implementation in win32k.sys in the kernel-mode drivers in Microsoft Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT Gold and 8.1, and Windows 10 does not properly constrain impersonation levels, which allows local users to gain privileges via a crafted application, aka "Win32k Elevation of Privilege Vulnerability."
- CVSS 2.0
- 7.2 HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C
- EPSS
- 6.56% probability · 93th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-264
- Affected
- microsoft/windows 10 · microsoft/windows 8 · microsoft/windows 8.1 · microsoft/windows rt · microsoft/windows rt 8.1 · microsoft/windows server 2012
- Source
- secure@microsoft.com
References
- http://www.securityfocus.com/bid/76599Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1033485Third Party Advisory, VDB Entry
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-097Patch, Vendor Advisory
- https://www.exploit-db.com/exploits/38199/Exploit, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/76599Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1033485Third Party Advisory, VDB Entry
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-097Patch, Vendor Advisory
- https://www.exploit-db.com/exploits/38199/Exploit, Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.