{"cvss":7.8,"datePublished":"2025-01-14","dateUpdated":"2025-01-14","description":"Microsoft Windows Hyper-V NT Kernel Integration VSP contains a heap-based buffer overflow vulnerability that allows a local attacker to gain SYSTEM privileges.","dueDate":"2025-02-04","id":"CVE-2025-21333","kev_catalogs":["cisa"],"knownRansomwareCampaignUse":"Unknown","notes":"https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-21333 ; https://nvd.nist.gov/vuln/detail/CVE-2025-21333","product":"Windows","requiredAction":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","severity":"HIGH","source":"cisa_known_exploited","title":"Microsoft Windows Hyper-V NT Kernel Integration VSP Heap-based Buffer Overflow Vulnerability","vendor":"Microsoft"}