CVE-2025-49716
Windows Netlogon Denial of Service Vulnerability
Uncontrolled resource consumption in Windows Netlogon allows an unauthorized attacker to deny service over a network.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Windows Netlogon Denial of Service Vulnerability
Uncontrolled resource consumption in Windows Netlogon allows an unauthorized attacker to deny service over a network.
- Record
CVE-2025-49716- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C - Weakness
- CWE-400
- Updated
- 2026-11-02
EUVDEUVD-2025-20627
Uncontrolled resource consumption in Windows Netlogon allows an unauthorized attacker to deny service over a network.
- Record
EUVD-2025-20627- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-884w-hqx3-6fj7
Uncontrolled resource consumption in Windows Netlogon allows an unauthorized attacker to deny...
Uncontrolled resource consumption in Windows Netlogon allows an unauthorized attacker to deny service over a network.
- Record
GHSA-884w-hqx3-6fj7- CVSS 3.1
- 5.9 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-02
NVD
Uncontrolled resource consumption in Windows Netlogon allows an unauthorized attacker to deny service over a network.
- Record
CVE-2025-49716- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-02
Affected products
- microsoft windows server 2008 r2 service pack 1
- microsoft windows server 2008 r2 service pack 1 (server core installation)
- microsoft windows server 2008 service pack 2
- microsoft windows server 2008 service pack 2 (server core installation)
- microsoft windows server 2012
- microsoft windows server 2012 (server core installation)
- microsoft windows server 2012 r2
- microsoft windows server 2012 r2 (server core installation)
- microsoft windows server 2016
- microsoft windows server 2016 (server core installation)
- microsoft windows server 2019
- microsoft windows server 2019 (server core installation)
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-49716 is a high vulnerability (CVSS 7.5) in Microsoft Windows Server 2008 R2 Service Pack 1, published July 8, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.63%, the 76th percentile. No source names a fixed version.