EXPOSURES › CVE-2026-21510
CVE-2026-21510
HIGH ⌖ ON CISA KEV · EXPLOITED
DETAIL
⚡ RCE
⌖ EXPLOITED IN THE WILD
SHAME 72/100
exploited-in-wildunpatched
Microsoft Windows Shell Protection Mechanism Vulnerability actively exploited
An unauthorized attacker could exploit a vulnerability in Microsoft Windows Shell to bypass a security feature over a network, potentially leading to unauthorized access and data breaches.
Shame score — Active exploitation indicates negligence in addressing a critical security flaw.
▸ RECOMMENDED ACTION Actively exploited (CISA KEV) — remediate now, ahead of your normal patch cycle.
PLAYERS IMPLICATED
DESCRIPTION
Microsoft Windows Shell contains a protection mechanism failure vulnerability that could allow an unauthorized attacker to bypass a security feature over a network.
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 |