Use-after-free in Microsoft Windows and Windows Server - CVE-2018-8453
Published: October 9, 2018 / Updated: June 17, 2021
Vulnerability identifier: #VU15249
CSH Severity: Medium
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-8453
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerability details
The vulnerability allows a local attacker to gain elevated privileges on the target system.
The vulnerability exists due to a use-after free error in win32kfull!xxxDestroyWindow Win32k component. A local user can run a specially crafted application, trigger memory corruption and execute arbitrary code in kernel mode.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Note: the vulnerability has been actively exploited in the wild.
Affected software
Microsoft Windows
Windows Server
Windows Server
How to mitigate CVE-2018-8453
Install updates from vendor's website.
Links to Public Exploits and PoC-codes
- Exploit #6067 - Windows - NtUserSetWindowFNID Win32k User Callback Privilege Escalation (Metasploit) (June 17, 2021)
- Exploit #2798 - WindowsExploitationResources (Resources pertaining to advanced Windows exploit development and semi-related topics) (June 2, 2020)
- Exploit #1522 - Windows NtUserSetWindowFNID Win32k User Callback (March 18, 2020)