Critical (9.1). EPSS 0.6% chance of exploitation in the next 30 days.
DocIO in Syncfusion Essential Studio for ASP.NET MVC before 27.1.55 throws XMLException during the resaving of a DOCX document with an external reference XML, aka I640714.
Severity
CVSS 3.1
9.1 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
EPSS
0.6% chance of exploitation in the next 30 days; higher than 49% of CVEs (scores of 2026-10-31)