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Fencer Vulns
low 3.3

CVE-2025-59284 json

Windows NTLM Spoofing Vulnerability

published 2025-10-14 12 mo ago modified 2026-10-18 21 d ago also EUVD-2025-34364

cvss
3.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 63%
public exploits
0
none known

Summary

Exposure of sensitive information to an unauthorized actor in Windows NTLM allows an unauthorized attacker to perform spoofing locally.

Patch / fix

  • Microsoft Windows 11 version 22H2 10.0.22621.6060
  • Microsoft Windows 11 version 22H3 10.0.22631.6060
  • Microsoft Windows 11 Version 23H2 10.0.22631.6060
  • Microsoft Windows 11 Version 24H2 10.0.26100.6899
  • Microsoft Windows 11 Version 25H2 10.0.26200.6899
  • Microsoft Windows Server 2025 10.0.26100.6899
  • Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.6899

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
12 mo ago

Exploit prediction

1.03% chance of exploitation in the next 30 days, higher than 63% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 3.3 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C
CNA 3.1 3.3 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Affected products

  • Microsoft Windows 11 version 22H2
  • Microsoft Windows 11 version 22H3
  • Microsoft Windows 11 Version 23H2
  • Microsoft Windows 11 Version 24H2
  • Microsoft Windows 11 Version 25H2
  • Microsoft Windows Server 2025
  • Microsoft Windows Server 2025 (Server Core installation)

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

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.