CVE-2021-38646 | BDVDB-2026-161007 Detail

MicrosoftMicrosoft 365 Apps for Enterprise

Description#

Microsoft Office Access Connectivity Engine Remote Code Execution Vulnerability

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

No weakness recorded in the source data.

No public exploit known

7.8 High

7.9%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 94.8.

Yes

Listed in the CISA Known Exploited Vulnerabilities catalog.

Not classified

Apply updates per vendor instructions.

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

Not available

7.8 High

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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).