Resource exhaustion in Microsoft Windows and Windows Server - CVE-2025-59502

Vulnerability identifier: #VU117204

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2025-59502

CWE-ID: CWE-400

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources in Remote Procedure Call. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Microsoft Windows
Windows Server

Install updates from vendor's website.

Microsoft Windows - addressed in versions 10 21H2 10.0.19044.6332, 10 1607 10.0.14393.8519, 10 1809 10.0.17763.7792, 11 23H2 10.0.22631.5909, 11 24H2 10.0.26100.6508, 11 24H2 10.0.26100.6584
Windows Server - addressed in versions 2012 R2 6.3.9600.22824, 2019 10.0.17763.7792, 2022 23H2 10.0.25398.1849, 2022 10.0.20348.4106, 2022 10.0.20348.4171, 2025 10.0.26100.6508, 2025 10.0.26100.6584

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-59502

• Denial of service in Microsoft Remote Procedure Call