[ CVE-2019-1458 · Published 10 Dec 2019 ]
Microsoft Win32k Privilege Escalation Vulnerability
Exploited · CISA KEV CVSS 7.8
EPSS 74%Fix available
[ Why it matters ]Priority signals
- Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2022-01-10
- Known to be used in ransomware campaigns
- EPSS: 74% chance of exploitation in the next 30 days (higher than 99% of CVEs)
[ Description ]Official description
An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'.
CISA: A privilege escalation vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k EoP.
[ Fixes ]Fixes and patches
CISA required action (US federal deadline 10 Jul 2022): Apply updates per vendor instructions.
- Patch on portal.msrc.microsoft.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD
[ References ]References
- packetstormsecurity.com/files/156651/Microsoft-Windows-WizardOpium-Local-Privilege-Esca…ExploitThird Party AdvisoryVDB Entry
- packetstormsecurity.com/files/159569/Microsoft-Windows-Uninitialized-Variable-Local-Pri…ExploitThird Party AdvisoryVDB Entry
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1458PatchVendor Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource