CVE•Published 2022-01-11•Modified 2026-05-19•1 article on news•6 live references•NVD data
CVE-2022-21840Microsoft · Excel
Vulnerability data via NVD (ingested)
CVSS v3.1
8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS percentile
93
Exploit Prediction Scoring System · top 7% of all CVEs
Description
Microsoft Office Remote Code Execution Vulnerability
Timeline
Published 2022-01-11
Modified 2026-05-19
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 tag6,585 hosts
vuln:CVE-2022-21840Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product + version
product:"Microsoft Excel" version:"2013"Version-pinned fingerprint from NVD's first vulnerable CPE.
Shodan · banner/body mention
http.html:"Excel"HTTP body or banner mentions "Excel" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2022-21840Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2022-21840Censys host search filtered to this CVE id.
grep.app
CVE-2022-21840Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2022-21840GitHub code search for direct mentions.
Google dork
"CVE-2022-21840" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2022-21840 on GitHub.