CVE-2021-43255 | BDVDB-2026-166014 Detail

MicrosoftMicrosoft Office LTSC 2021

Description#

Microsoft Office Trust Center Spoofing Vulnerability

Per CVSS v3.1: confidentiality impact none, integrity impact high, availability impact none. Attack vector: local.

No weakness recorded in the source data.

No public exploit known

5.5 Medium

2.0%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 81.7.

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Not classified

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

5.5 Medium

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

Not available

Not available

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