Threat actors have wasted no time weaponizing a newly disclosed Microsoft SharePoint authentication bypass, launching real-world attacks against internet-facing servers just hours after security firm Rapid7 published a technical breakdown and proof-of-concept exploit for the flaw. The vulnerability, tracked as CVE-2026-55040 and carrying a critical CVSS score of 9.1, allows a remote, unauthenticated attacker to […]
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