Microsoft · Win32k
CVE-2019-1458
Microsoft Win32k Privilege Escalation Vulnerability
Exploited in attacks
Used by ransomware
High 7.8 Attack chance: 74%
What it is
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.
What to do
Apply updates per vendor instructions.
Deadline for US federal agencies: July 10, 2022
- Added to the CISA list
- January 10, 2022
- Published
- December 10, 2019
- Severity
- High 7.8 CVSS 3.1
- Chance of attacks in the next 30 days (EPSS)
- 74% in the top 0.5% of all known vulnerabilities
- More details
- NVD · CVE.org · CISA
All references (3)
More exploited flaws from Microsoft
| Added | Vulnerability | Product | Severity | Attack chance |
|---|---|---|---|---|
| Jun 22, 2023 | Privilege Escalation | Win32k | High 7.8 | 14% |
| May 9, 2023 | Privilege Escalation | Win32k | High 7.8 | 41% |
| May 25, 2022 | Privilege Escalation | Win32k | High 8.8 | 15% |
| May 23, 2022 | Privilege Escalation | Win32k | High 7.8 | 3.0% |
| May 4, 2022 | Privilege Escalation | Win32k | High 7.8 | 87% |
| Apr 25, 2022 | Privilege Escalation | Win32k | High 7.8 | 1.6% |
| Apr 25, 2022 | Privilege Escalation | Win32k | High 7.8 | 1.6% |
| Mar 28, 2022 | Privilege Escalation | Win32k | High 7.8 | 39% |
Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.