CVE•Published 2026-02-10•1 article on news•6 live references•NVD data
CVE-2026-21244
Vulnerability data via CVEDB (Shodan)
CVSS v3.1
7.3
HIGH
EPSS percentile
66
Exploit Prediction Scoring System · top 34% of all CVEs
Description
Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally.
Timeline
Published 2026-02-10
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2026-21244Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · OS
os:"Windows 10 1607"Hosts Shodan identified as running Windows 10 1607.
More intel sources (5)
Shodan report
vuln:CVE-2026-21244Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-21244Censys host search filtered to this CVE id.
grep.app
CVE-2026-21244Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-21244GitHub code search for direct mentions.
Google dork
"CVE-2026-21244" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub (2)
CVE-2026-212442 repos
XuzhaoLi/ro-arxiv-dailyPython
Automatically Update Arxiv Papers about Path Planning, LLM and Autonomous Driving using Github Actions since 2024.2.
Chocapikk/WindfallRuby
Windfall - Unauthenticated RCE exploit chain for Windmill & Nextcloud Flow (CVE-2026-29059). Path traversal + credential leak + PostgreSQL heap dump + Nextcloud AppAPI takeover.