AUGUST 4, 2026

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Case File

CVE-2021-43255

MEDIUM · CVSS 5.5 EPSS 1.98%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-12-15 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 5.5. It affects Microsoft, Office.

CVE

CVE-2021-43255

Severity

MEDIUM

CVSS

5.5

EPSS

1.98%

Microsoft Office

Original NVD Description

Microsoft Office Trust Center Spoofing Vulnerability

Related CVEs

Other vulnerabilities affecting the same vendor(s)

CVE-2026-17992 MEDIUM CVE-2026-17932 MEDIUM CVE-2026-17908 MEDIUM CVE-2026-17900 MEDIUM CVE-2026-17863 HIGH CVE-2026-17862 HIGH