CVE

CVE-2025-53771

2field notes · 0digests

Field notes

Analysis · May 5, 2026 · The Field Notes Desk
The 6.5 that enabled 400 compromises: authentication bypasses and the CVSS blind spot
CVE-2025-49706 scored CVSS 6.5. It enabled unauthenticated RCE across 400+ SharePoint servers. Authentication bypasses are consistently underscored, and consistently the vulnerability class that turns a bad bug into a mass-exploitation campaign.
Analysis · May 5, 2026 · The Field Notes Desk
The patch that wasn't: why SharePoint's fix needed a fix
CVE-2025-53770 bypassed Microsoft's July patch for SharePoint within days. The problem isn't bugs. It's that incomplete fixes are a pattern, and patch compliance frameworks can't measure patch quality.