CVE-2026-58644

Microsoft SharePoint Deserialization of Untrusted Data Vulnerability
15.9%
EPSS
97%
Percentile
Yes
Known exploited
0
APAC news · 90d
Summary

Microsoft SharePoint contains a deserialization of untrusted data vulnerability that allows an unauthorized attacker to execute code over a network.

Vendor
Microsoft
Product
SharePoint
Added to KEV
Jul 16, 2026
Remediation due
Jul 19, 2026 (US federal deadline)
Ransomware use
Not known
Weakness
CWE-502
EPSS
15.9% as of Nov 12
In the news
  • No Asia-Pacific article names this CVE yet.
Linked
Actors named alongside it:
none
Incidents exploiting it:
  • none recorded