PT-2026-40231 · Microsoft · Office Word

Published 2026-05-12 · Updated 2026-05-16 · CVE-2026-40421

Positive Technologies (AI Summary)

CVSS v2.0

5.0

Medium

Base vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

Name of the Vulnerable Software and Affected Versions Microsoft Office Word (affected versions not specified)

Description External control of a file name or path allows an unauthorized attacker to disclose sensitive information over a network.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-73

Related Identifiers

BDU:2026-06799

CVE-2026-40421

Affected Products

Office Word

References · 5

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40421 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-40421 · Security Note
• https://bdu.fstec.ru/vul/2026-06799 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-40421 · Security Note
• https://t.me/cveNotify/163714 · Telegram Post