EXPOSURES › CVE-2025-21418
CVE-2025-21418
HIGH ⌖ ON CISA KEV · EXPLOITED
DETAIL
⌖ EXPLOITED IN THE WILD
SHAME 50/100
exploited-in-wild
A Microsoft Windows driver vulnerability allows local privilege escalation to SYSTEM, actively exploited in the wild.
▸ RECOMMENDED ACTION Actively exploited (CISA KEV) — remediate now, ahead of your normal patch cycle.
PLAYERS IMPLICATED
DESCRIPTION
Microsoft Windows Ancillary Function Driver for WinSock contains a heap-based buffer overflow vulnerability that allows for privilege escalation, enabling a local attacker to gain SYSTEM privileges.
AFFECTED FEDRAMP PRODUCTS · 4
| PRODUCT | STATUS |
|---|---|
| Azure Commercial Cloud Microsoft |
Authorized |
| Azure Government (includes Dynamics 365) Microsoft |
Authorized |
| Microsoft Office 365 GCC High Microsoft |
In Process |
| Office 365 Multi-Tenant & Supporting Services Microsoft |
Authorized |