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CVE-2026-21244highCWE-122

Windows Hyper-V Remote Code Execution Vulnerability

41Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 7.3epss 1.2%
from disclosure to weapon79 days
Published on NVDFeb 10
1st PoC+79d
exploitation probability
1.2%top 34% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally.
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.