PULSE
ES
FEED
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CVE WatchAug 19, 2026

CVE-2021-42305

Microsoft Exchange Server Spoofing Vulnerability

CVSS

6.5

Medium

EPSS

7.9%

p95

KEV

—

Exploit Today

28

0-100

Published: Nov 10, 2021 · Last modified: Aug 19, 2026

EPSS · 30d
7.9%EPSS · 30 days7.9%
2026-10-022026-10-29
Technical description

Microsoft Exchange Server Spoofing Vulnerability

Official references
Related CVEs

No related CVEs by CWE or product.