Microsoft Exchange servers
Nearly 22,000 Microsoft Exchange servers exposed online remain unpatched against a high-severity authentication bypass vulnerability that allows attackers to hijack all user mailboxes. [...]
Original Disclosure
https://www.bleepingcomputer.com/news/security/nearly-22-00…
Severity
medium
Sector
finance
Disclosure date
September 1, 2026
Indexed
9 hours, 49 minutes ago