CVE•Published 2021-07-16•Modified 2026-08-10•1 article on news•4 live references•NVD data
CVE-2021-34442Microsoft · Windows_server_2008
Vulnerability data via NVD (ingested)
CVSS v3.1
8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
86
Exploit Prediction Scoring System · top 14% of all CVEs
Description
Windows DNS Server Remote Code Execution Vulnerability
Timeline
Published 2021-07-16
Modified 2026-08-10
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-2021-34442Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · OS
os:"Windows Server 2008"Hosts Shodan identified as running Windows Server 2008.
More intel sources (5)
Shodan report
vuln:CVE-2021-34442Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2021-34442Censys host search filtered to this CVE id.
grep.app
CVE-2021-34442Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2021-34442GitHub code search for direct mentions.
Google dork
"CVE-2021-34442" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2021-34442 on GitHub.