EXPOSURES › CVE-2026-58644
CVE-2026-58644
HIGH ⌖ ON CISA KEV · EXPLOITED
DETAIL
⚡ RCE
⌖ EXPLOITED IN THE WILD
SHAME 72/100
rceexploited-in-wildunpatched
Microsoft SharePoint RCE due to untrusted data deserialization
An unpatched vulnerability in Microsoft SharePoint allows remote code execution, enabling attackers to compromise networks.
Shame score — Active exploitation of a critical vulnerability in a widely-used product by nation-state actors or cybercriminals.
▸ RECOMMENDED ACTION Actively exploited (CISA KEV) — remediate now, ahead of your normal patch cycle.
PLAYERS IMPLICATED
DESCRIPTION
Microsoft SharePoint contains a deserialization of untrusted data vulnerability that allows an unauthorized attacker to execute code 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 |