CVE-2026-21247 Windows Hyper-V Remote Code Execution Vulnerability

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CVE-2026-21247

CVE-2026-21247 is an input-validation flaw in Windows Hyper-V that can allow a locally authenticated attacker to execute arbitrary code. The vulnerability arises from improper handling of input, with a CVSSv3.1 base score of 7.3 (HIGH), indicating local attack vector, low attack complexity, and r...

CVE-2026-21247

creationtimestamp| type| source ---|---|--- 2026-02-10 17:30:28+00:00| seen| https://www.thezdi.com/blog/2026/2/10/the-february-2026-security-update-review 2026-02-10 18:01:45+00:00| seen| https://advisories.ncsc.nl/advisory?id=NCSC-2026-0053...