Microsoft Exchange Server Flaw Exploited as a Zero-Day Bug

February 15, 2024 at 04:34PM Microsoft identified a critical vulnerability in Exchange Server disclosed in February as a zero-day threat already being exploited. The flaw (CVE-2024-21410) permits attackers to disclose and relay Windows NT Lan Manager hashes, impersonating legitimate users. Microsoft revised its advisory, flagging the exploit as a zero-day. A cumulative update (CU14) protects … Read more