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CVE-2025-24983

Microsoft Windows Win32k Use-After-Free

7.0 HIGHActively exploited (CISA KEV)EPSS 1.38%
  1. Published11 Mar 2025
  2. Added to CISA KEV11 Mar 2025
  3. Remediation due1 Apr 2025
Actively exploited (CISA KEV)

Microsoft Windows Win32 Kernel Subsystem contains a use-after-free vulnerability that allows an authorized attacker to elevate privileges locally.

Added to KEV: 11 Mar 2025Federal remediation due: 1 Apr 2025

Description

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

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityHigh
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Microsoft Windows 10 1507< 10.0.10240.20947
Microsoft Windows 10 1607< 10.0.14393.7876
Microsoft Windows Server 2008r2
Microsoft Windows Server 2012r2
Microsoft Windows Server 2016< 10.0.14393.7876

Remediation

Fixed in
Microsoft Windows 10 1507≥ 10.0.10240.20947
Microsoft Windows 10 1607≥ 10.0.14393.7876
Microsoft Windows Server 2016≥ 10.0.14393.7876

References

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Frequently asked

Is CVE-2025-24983 being actively exploited?

Yes. CVE-2025-24983 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 11 Mar 2025.

How severe is CVE-2025-24983?

CVE-2025-24983 has a CVSS 3.1 base score of 7.0, rated high. EPSS estimates a 1.38% probability of exploitation.

Which products are affected by CVE-2025-24983?

Affected products include Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows Server 2008, Microsoft Windows Server 2012, Microsoft Windows Server 2016.

How do I fix CVE-2025-24983?

Upgrade affected software to a fixed version, for example Microsoft Windows 10 1507 10.0.10240.20947, Microsoft Windows 10 1607 10.0.14393.7876, Microsoft Windows Server 2016 10.0.14393.7876 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-24983 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.