Vulnerabilities · InfosecFeed Brief
Attackers Exploit SharePoint Authentication Bypass After Public PoC Release
What you need to know
Threat actors have begun to exploit a newly disclosed Microsoft SharePoint vulnerability following the release of a proof-of-concept (PoC) code. The vulnerability in question is CVE-2026-55040 (CVSS score: 9.1), which refers to a critical security feature bypass that stems from weak authentication. It was patched by Microsoft as part of its July 2026 Patch…
Source transparency
Read the original report at The Hacker News ↗
This is an InfosecFeed curated brief based on reporting from The Hacker News. InfosecFeed does not claim ownership of the original reporting.