Microsoft · Win32k
CVE-2018-8453
Microsoft Win32k Privilege Escalation Vulnerability
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." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2019, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.
CISA: Microsoft Windows Win32k contains a vulnerability that allows an attacker to escalate privileges.
What to do
Apply updates per vendor instructions.
Deadline for US federal agencies: July 21, 2022
- Added to the CISA list
- January 21, 2022
- Published
- October 10, 2018
- Severity
- High 7.8 CVSS 3.1
- Chance of attacks in the next 30 days (EPSS)
- 70% in the top 0.6% of all known vulnerabilities
- Weakness
- CWE-404
- More details
- NVD · CVE.org · CISA
All references (5)
- http://www.securitytracker.com/id/1041828
- https://securelist.com/cve-2018-8453-used-in-targeted-attack
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8453
- http://www.securityfocus.com/bid/105467
- http://packetstormsecurity.com/files/153669/Microsoft-Windows-NtUserSetWindowFNID-Win32k-User-Callback.html
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.