CVE-2025-49666: Windows Server Setup and Boot Event Collection Remote Code Execution Vulnerability
Overview
- Severity
- High (CVSS 7.2)
- CVSS Vector
- CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
- Category
- Remote Code Execution
- Exploit Status
- Not Exploited
- Exploitation Likelihood
- Unlikely
- Patch Tuesday
- 2025-Jul
- Released
- 2025-07-08
- EPSS Score
- 0.46% (percentile: 64.2%)
Description
Heap-based buffer overflow in Windows Kernel allows an authorized attacker to execute code over a network.
FAQ
According to the CVSS metric, privileges required is high (PR:H). What does that mean for this vulnerability?
To successfully exploit this vulnerability, an attacker or the targeted user would need to achieve a high level of control over a machine, as the attack requires access to processes typically restricted from average users.
Essentially, the exploitation necessitates elevated privileges on the compromised machine due to the requirement of manipulating processes beyond the reach of standard user permissions.
Detection & Weaponization (1 sources)
Maturity: Exploit
- GitHub PoC: 1 repositories
Affected Products (9)
Windows
- Windows Server 2019
- Windows Server 2019 (Server Core installation)
- Windows Server 2022
- Windows Server 2022 (Server Core installation)
- Windows Server 2025 (Server Core installation)
- Windows Server 2022, 23H2 Edition (Server Core installation)
- Windows Server 2025
- Windows Server 2016
- Windows Server 2016 (Server Core installation)
Security Updates (5)
Acknowledgments
Anonymous
Revision History
- 2025-07-08: Information published.