Skip to content
Fencer Vulns
high 7.5

CVE-2025-49716 json

Windows Netlogon Denial of Service Vulnerability

published 2025-07-08 16 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-20627

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 76%
public exploits
0
none known

Summary

Uncontrolled resource consumption in Windows Netlogon allows an unauthorized attacker to deny service over a network.

Patch / fix

  • Microsoft Windows Server 2008 R2 Service Pack 1 6.1.7601.27820
  • Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation) 6.1.7601.27820
  • Microsoft Windows Server 2008 Service Pack 2 6.0.6003.23418
  • Microsoft Windows Server 2008 Service Pack 2 (Server Core installation) 6.0.6003.23418
  • Microsoft Windows Server 2012 6.2.9200.25573
  • Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.25573
  • Microsoft Windows Server 2012 R2 6.3.9600.22676
  • Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.22676
  • Microsoft Windows Server 2016 10.0.14393.8246
  • Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.8246
  • Microsoft Windows Server 2019 10.0.17763.7558
  • Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.7558
  • Microsoft Windows Server 2022 10.0.20348.3932
  • Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.1732

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
15 mo ago

Exploit prediction

1.63% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 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
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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)
  • Microsoft Windows Server 2022
  • Microsoft Windows Server 2022, 23H2 Edition (Server Core installation)

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.