CVE-2026-40369

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

CVSS Score

7.8

High

EPSS — Exploit Probability

4.7%

Riskier than 91% of all CVEs

Exploitation

Not in CISA KEV

No federal exploitation record

Remediation

Patch available

Vendor fix published

1 article across 1 outlet · first covered May 27, 2026 · latest May 27, 2026

Coverage timeline