CVE-2026-97774 | BDVDB-2026-388049 Detail

MicrosoftMicrosoft 365 Apps for Enterprise

Description#

Time-of-check time-of-use (toctou) race condition in Microsoft Office Click-To-Run allows an authorized attacker to elevate privileges locally.

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: local.

No public exploit known

7.0 High

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 7.7.

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Race Condition

No specific action is recorded in the source data. Check the references for vendor guidance.

Vulnerable
>= 16.0.1 and < https://aka.ms/OfficeSecurityReleases
Fixed
https://aka.ms/OfficeSecurityReleases

Not available

7.0 High

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Not available

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).