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.
https://www.bleepingcomputer.com/news/security/nearly-22-000-microsoft-exchange-servers-vulnerable-to-hijack-attacks/
BleepingComputer
npub1pk…z6763
2026-09-01 12:38:53 UTC
Author Public Key
npub1pkrnqz97z2wckgmwglckccgg65eanvw3wpvuses7npqlvv6st06svz6763Seen on
wss://relay.momostr.pinkPublished at
2026-09-01 12:38:53 UTCEvent JSON
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"content": "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.\n\nhttps://www.bleepingcomputer.com/news/security/nearly-22-000-microsoft-exchange-servers-vulnerable-to-hijack-attacks/",
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