Researcher Drops New Windows Zero-Day PoC Hours After Microsoft Patch Tuesday
Vulnerabilities mentioned
All| CVE | Vulnerability | CVSS | EPSS | Signals | Published |
|---|---|---|---|---|---|
| CVE-2026-32201 | Improper Input Validation Spoofing Vulnerability in Microsoft SharePoint Server | 6.5 | 43% | KEV | KEV |
| CVE-2026-45659 | Authenticated Deserialization RCE in Microsoft SharePoint Server (Actively Exploited) | 8.8 | 80% | KEVRansomware | KEV |
| CVE-2026-55040 | Authentication Bypass in Microsoft SharePoint Server | 9.1 | 70% | KEVPoC ×2 | KEV |
| CVE-2026-56155 | Local Privilege Escalation in Microsoft Active Directory Federation Services | 7.8 | <1% | KEV | KEV |
| CVE-2026-56164 | Missing Authentication in Microsoft SharePoint Server Allows Privilege Escalation | 9.8 | 1% | KEV | KEV |
From the original article
6 min read at thehackernews.com
Security researcher Chaotic Eclipse (aka Nightmare-Eclipse ) has released a new proof-of-concept (PoC) exploit called LegacyHive. It has been described as a Windows User Profile Service arbitrary hive load elevation of privileges vulnerability. The Windows User Profile Service, also referred to as ProfSvc, is a core system component that manages user accounts and environments.
By @TheHackersNews · thehackernews.com
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