Privilege escalation in Microsoft Windows Win32

1) Use-after-free

EUVDB-ID: #VU105516

Risk: High

CVSSv4.0: 7.3 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: CVE-2025-24983

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the Windows Win32 Kernel Subsystem. A local user can win a race and execute arbitrary code SYSTEM privileges.

Note, the vulnerability is being exploited in the wild.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 10 1507 10.0.10240.1643 - 10 1607 10.0.14393.7785

Windows Server: 2008 R2 SP1 - 2016 10.0.14393.7785

CPE2.3

• cpe:2.3:o:microsoft:windows:10_1507:10.0.10240.20915:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows:10_1607:10.0.14393.7785:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2008:6.0.6003.23117:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2012:6.2.9200.25317:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2016:10.0.14393.7785:*:*:*:*:*:*

External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-24983

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.