High severity · published Apr 21, 2015
CVE-2015-1701
Microsoft Win32k Privilege Escalation Vulnerability
RansomwareIn wildKEV
7.8
CVSS
55.9%
EPSS
Yes
On KEV
Description
Win32k.sys in the kernel-mode drivers in Microsoft Windows Server 2003 SP2, Vista SP2, and Server 2008 SP2 allows local users to gain privileges via a crafted application, as exploited in the wild in April 2015, aka "Win32k Elevation of Privilege Vulnerability."
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)55.9% · higher than 99% of CVEs
Exploited in the wildYes
CISA KEVListed Mar 3, 2022
Federal remediation dueMar 24, 2022
Ransomware campaign useKnown
Affected products
Which versions
W2
Windows 2003 Server · Microsoft
r2 · source: NVD
W7
Windows 7 · Microsoft
All versions, or not specified · source: NVD
WS
Windows Server 2008 · Microsoft
All versions, or not specified · source: NVD
WV
Windows Vista · Microsoft
All versions, or not specified · source: NVD
WI
Win32k · Microsoft
All versions, or not specified · source: KEV
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2015-1701
CVE.org
https://www.cve.org/CVERecord?id=CVE-2015-1701
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
x_refsource_MISC
http://twitter.com/symantec/statuses/590208710527549440
exploit
https://www.exploit-db.com/exploits/37049/
vdb-entry
http://www.securityfocus.com/bid/74245
vendor-advisory
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-051
exploit
https://www.exploit-db.com/exploits/37367/
x_refsource_MISC
https://www.fireeye.com/blog/threat-research/2015/04/probable_apt28_useo.html
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