CVE-2026-21248

CVE

Threat entity extracted from intelligence sources

Frequency

occurrences

First Seen

February 10, 2026

Last Seen

February 10, 2026

API

Exploited in Wild

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Ransomware Use

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Public Exploits

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Attack Vector

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Vulnerability Overview

Exploitation Activity

Exploitation Intelligence

Multiple Vulnerabilities Discovered in Windows Hyper-V29.8

On February 10, 2026, Microsoft published multiple CVEs related to vulnerabilities in Windows Hyper-V. These include heap-based buffer overflows and improper input validation that allow authorized attackers to execute code locally, as well as an improper access control vulnerability that permits byp...

February 2026 Patch Tuesday Addresses Multiple Vulnerabilities18.4

On February 10, 2026, Adobe and Microsoft released security patches addressing numerous vulnerabilities, including 36 CVEs published on the same day. Notably, three CVEs (CVE-2026-21510, CVE-2026-21514, and CVE-2026-21519) were added to the CISA Known Exploited Vulnerabilities (KEV) list due to acti...