VULNERABILITY INTELLIGENCE

CVE-2026-21244

CVSS score7.3 HIGH
EPSS probability1.33%
CISA KEVNot currently listed
Published2026-02-10
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Description

Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally.

Weakness classification

  • secure@microsoft.com: CWE-122
  • nvd@nist.gov: CWE-787

Primary references