CVE•Published 2026-03-10•1 article on news•6 live references•NVD data
CVE-2026-26109
Vulnerability data via CVEDB (Shodan)
CVSS v3.1
8.4
HIGH
EPSS percentile
33
Exploit Prediction Scoring System · top 67% of all CVEs
Description
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Timeline
Published 2026-03-10
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-2026-26109Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Microsoft 365 Apps"All exposed Microsoft 365 Apps instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"365 Apps"HTTP body or banner mentions "365 Apps" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-26109Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-26109Censys host search filtered to this CVE id.
grep.app
CVE-2026-26109Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-26109GitHub code search for direct mentions.
Google dork
"CVE-2026-26109" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.