CVE-2015-1701VulnerabilityPublished 03/03/2022Updated 10/24/2026
CVE-2015-1701: Microsoft Win32k Privilege Escalation Vulnerability
Affects Microsoft Win32kSource CISA KEV
Severity
HighNo CVSS score published yet
- Exploitation
Actively exploited – in CISA KEV since 03/03/2022
- KEV deadline
- 03/24/2022
- Ransomware
- Used in ransomware campaigns
- EPSS
- 55.9% chance of exploitation in 30 days – higher than 99% of CVEs
What to do
CISA required action
Apply updates per vendor instructions.
Description
CVE-2015-1701 is a privilege escalation vulnerability in the Win32k.sys kernel-mode driver in Microsoft Windows Server. It allows a local attacker to execute arbitrary code with elevated privileges. This vulnerability has been exploited in the wild and is known to have been used in ransomware campaigns. No specific affected versions or patch information is provided in the available data.