CVE•Published 2021-04-13•1 article on news•7 live references•NVD data
CVE-2021-28481
Vulnerability data via CVEDB (Shodan)
CVSS v3.1
9.8
CRITICAL
EPSS percentile
98
Exploit Prediction Scoring System · top 2% of all CVEs
Description
Microsoft Exchange Server Remote Code Execution Vulnerability
Timeline
Published 2021-04-13
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-2021-28481Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product + version
product:"Microsoft Exchange Server" version:"2013"Version-pinned fingerprint from NVD's first vulnerable CPE.
Shodan · banner/body mention
http.html:"Exchange Server"HTTP body or banner mentions "Exchange Server" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2021-28481Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2021-28481Censys host search filtered to this CVE id.
grep.app
CVE-2021-28481Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2021-28481GitHub code search for direct mentions.
Google dork
"CVE-2021-28481" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2021-28481 on GitHub.