CISA Known Exploited Vulnerability
This vulnerability is actively exploited in the wild and listed in the CISA Known Exploited Vulnerabilities catalog.
Remediation Deadline: Sep 25, 2025
Description
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.
EPSS — Exploit Probability
10.0%
Higher than 93.0% of all CVEs
Required Action
https://support.sitecore.com/kb?id=kb_article_view&sysparm_article=KB1003865 ; https://nvd.nist.gov/vuln/detail/CVE-2025-53690
Risk Assessment
ELEVATEDIn CISA KEV
Details
- Severity
- High
- EPSS
- 10.0%
- CISA KEV
- Yes
- Ransomware
- Unknown
- Articles
- 0
Timeline
Published
Sep 4, 2025
Added to KEV
Sep 4, 2025
Remediation Due
Sep 25, 2025