Double free in Windows Server - CVE-2025-49688
Published: July 8, 2025
Vulnerability identifier: #VU112493
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-49688
CWE-ID: CWE-415
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Windows Routing and Remote Access Service (RRAS). A remote attacker can trick a victim into sending a request to a malicious server, trigger double free error and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Windows Server
How to mitigate CVE-2025-49688
Install updates from vendor's website.
Windows Server - addressed in versions 2012 R2 6.3.9600.22676, 2016 10.0.14393.8246, 2019 10.0.17763.7558, 2022 23H2 10.0.25398.1732, 2022 10.0.20348.3932, 2025 10.0.26100.4652, 2025 10.0.26200.4349