Microsoft fixes two actively exploited zero-days (CVE-2025-21418, CVE-2025-21391)
Vulnerabilities mentioned
All| CVE | Vulnerability | CVSS | EPSS | Signals | Published |
|---|---|---|---|---|---|
| CVE-2024-38193 | Use-After-Free Privilege Escalation in Microsoft Windows WinSock Driver (afd.sys) | 7.8 | 29% | KEVPoC | KEV |
| CVE-2025-21194 | Microsoft Surface Security Feature Bypass Vulnerability | 7.1 | <1% | ||
CVE-2025-21376+1 related CVE | Windows Lightweight Directory Access Protocol (LDAP) Remote Code Execution Vulnerability | 8.1 group max | 9% | ||
CVE-2025-21418+1 related CVE | Local Privilege Escalation via Heap Overflow in Windows WinSock AFD Driver | 7.8 group max | 2% | KEV | KEV |
From the original article
2 min read at helpnetsecurity.com
February 2025 Patch Tuesday is here, and Microsoft has delivered fixes for 56 vulnerabilities, including two zero-days – CVE-2025-21418 and CVE-2025-21391 – under active exploitation. CVE-2025-21418 is a vulnerability in the Windows Ancillary Function Driver (AFD. sys), which interfaces with the Windows Sockets API to enable Windows applications to connect to the internet.
By @zeljkazorz · helpnetsecurity.com
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