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Fencer Intel
high 7.0

CVE-2025-24983 kev in the critical feed json

Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability

published last yr. modified 4mo ago also EUVD-2025-6323

cvss
7.0
version 3.1, CNA
cisa kev
Exploited
added 2025-03-11
epss
1.9%
EPSS 1.9% chance of exploitation in 30 days, percentile 79%
public exploits
0
none known

Summary

Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.

Patch / fix

cisa required action Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

  • Microsoft Windows 10 Version 1507 10.0.10240.20947
  • Microsoft Windows 10 Version 1607 10.0.14393.7876
  • Microsoft Windows Server 2008 R2 Service Pack 1 6.1.7601.27618
  • Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation) 6.1.7601.27618
  • Microsoft Windows Server 2008 Service Pack 2 6.0.6003.23168
  • Microsoft Windows Server 2008 Service Pack 2 (Server Core installation) 6.0.6003.23168
  • Microsoft Windows Server 2012 6.2.9200.25368
  • Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.25368
  • Microsoft Windows Server 2012 R2 6.3.9600.22470
  • Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.22470
  • Microsoft Windows Server 2016 10.0.14393.7876
  • Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.7876

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Timeline

  1. 0-day patched (Project Zero)
  2. Added to CISA KEV
  3. Published
  4. CISA SSVC: exploitation active
  5. CISA patch deadline

Known exploited

Added
last yr.
Patch by
2025-04-01 (last yr.)
Ransomware
Not known
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Vendor, product
Microsoft, Windows
CISA name
Microsoft Windows Win32k Use-After-Free Vulnerability

Zero-day

Detected in real attacks while still unknown to the vendor and the public, per Google Project Zero's 0day In-the-Wild tracker.

Patched
2025-03-11
Details
project zero tracker

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
no
Technical impact
total
Assessed
last yr.

Exploit prediction

1.87% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C
CNA 3.1 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Microsoft Windows 10 Version 1507
  • Microsoft Windows 10 Version 1607
  • 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)

Classification

Weakness

References

Sources

Fencer Intel 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.