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HIGH · 8.8

CVE-2026-24283

Heap-based buffer overflow in Windows File Server allows an authorized attacker to elevate privileges locally.

Vulnerability Description

Heap-based buffer overflow in Windows File Server allows an authorized attacker to elevate privileges locally.

CVSS Score

8.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
MicrosoftWindows 11 24H2< 10.0.26100.7979
MicrosoftWindows 11 25H2< 10.0.26200.7979
MicrosoftWindows 11 26H1< 10.0.28000.1719
MicrosoftWindows Server 2022 23H2< 10.0.25398.2207
MicrosoftWindows Server 2025< 10.0.26100.32463

Related Weaknesses (CWE)

CWE-122

References

FAQ

What is CVE-2026-24283?

CVE-2026-24283 is a vulnerability with a CVSS score of 8.8 (HIGH). Heap-based buffer overflow in Windows File Server allows an authorized attacker to elevate privileges locally.

How severe is CVE-2026-24283?

CVE-2026-24283 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-24283?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows 11 24H2, Microsoft Windows 11 25H2, Microsoft Windows 11 26H1, Microsoft Windows Server 2022 23H2, Microsoft Windows Server 2025.