CVE-2019-0803
KEV RANSOMWAREHIGH 7.8EPSS 45.2%
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'. This CVE ID is unique from CVE-2019-0685, CVE-2019-0859.
- Affected
- Microsoft · Windows · Windows Server
- CVSS v3.1 NVD
- 7.8 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS v2.0 NVD
- 7.2 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C - EPSS
- 45.23% chance of exploitation in the next 30 days, 99th percentile
- CISA KEV
- added 2021-11-03, used in ransomware campaigns
- Published
- 2019-04-09
- Updated
- 2025-10-21
Proof-of-concept exploits (7)
- ExpLife0011/CVE-2019-080382★ · 2019-05-17
- GrapeFruitWolfs/hei0★ · 2019-10-31
- Iamgublin/CVE-2019-08031★ · 2019-05-17
- Micr067/K8tools0★ · 2019-10-24
- Ratlesv/K8tools0★ · 2023-06-20
- SeagullGR/k8-20192★ · 2019-06-19
- cc8700619/K80★ · 2025-05-20
ExploitDB entries (1)
Exploit collections (1)
- CVE-2019-0803helloexp/0day
Security advisories
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0803
- http://packetstormsecurity.com/files/153034/Microsoft-Windows-Win32k-Privilege-Escalation…