March 25, 2022 · Applied Cybernetics Group
CVE-2021-42237 — Sitecore XP
known ransomware use
Sitecore XP Remote Command Execution Vulnerability
- Added to KEV
2022-03-25- Federal due date
2022-04-15- Vendor
- Sitecore
- Product
- XP
- EPSS
- 100.0th percentile (score 0.944, as of
2026-06-08) - NVD CVSS v3.1
- —
- Ransomware use
- Known
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2021-42237
CISA short description
Sitcore XP contains an insecure deserialization vulnerability which can allow for remote code execution.
Required action
Apply updates per vendor instructions.