CVE•Published 2026-10-15•Modified 2026-10-19•1 article on news•3 live references•NVD data

CVE-2026-108443Microsoft · 365_apps

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

Exploit Prediction Scoring System · top 63% of all CVEs

Weaknesses (CWE)

CWE-193Off-by-one Error

Description

Off-by-one error in Microsoft Office Word allows an unauthorized attacker to execute code over a network.

Timeline

Published 2026-10-15

Modified 2026-10-19

External references

NVD MITRE VulnCheck

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-2026-108443

Hosts 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-2026-108443

Country / ASN / product breakdown for the vuln query.

Censys

vulnerabilities.cve_id: CVE-2026-108443

Censys host search filtered to this CVE id.

grep.app

CVE-2026-108443

Public source-code mentions — fast PoC discovery.

GitHub code

CVE-2026-108443

GitHub code search for direct mentions.

Google dork

"CVE-2026-108443" exploit -site:nvd.nist.gov

Write-ups and news, NVD excluded.

Known PoCs on GitHub

No public proof-of-concept repositories found for CVE-2026-108443 on GitHub.