Technical Severity
CRITICAL
CVSS v3.1 Metrics
9
/ 10
Minimal Risk
Critical
Vector Specification
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Exploitation Likelihood
EPSS Prediction
8.12
%
Predictive Probability
Percentile Rank
92.0
th
Documented as more likely to be exploited than 92.0% of known CVEs.
Detection Date
Sep 04, 2025
Remediation Due
Sep 25, 2025
CISA Catalog Active
Threat Analysis
Sitecore Experience Manager (XM), Experience Platform (XP), Experience Commerce (XC), and Managed Cloud contain a deserialization of untrusted data vulnerability involving the use of default machine keys. This flaw allows attackers to exploit exposed ASP.NET machine keys to achieve remote code execution.
Remediation Directive
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.