EXPOSURES › CVE-2026-21513
CVE-2026-21513
HIGH ⌖ ON CISA KEV · EXPLOITED
DETAIL
⚡ RCE
⌖ EXPLOITED IN THE WILD
SHAME 72/100
exploited-in-wildunpatched
Microsoft's MSHTML Framework allowed unauthorized attackers to bypass security features over a network.
A vulnerability in Microsoft's MSHTML Framework allowed attackers to exploit a bypass of a security feature, leading to potential unauthorized access over a network. This is a high severity issue actively exploited in the wild.
Shame score — Actively exploited in the wild with no patch available at the time of reporting.
▸ RECOMMENDED ACTION Actively exploited (CISA KEV) — remediate now, ahead of your normal patch cycle.
PLAYERS IMPLICATED
DESCRIPTION
Microsoft MSHTML Framework 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 |