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CVE-2021-42237: Sitecore XP Remote Command Execution Vulnerability
Sitecore XP · in CISA KEV since 2022-03-25
2022-03-25added to KEV
2022-04-15federal remediation due date
97.76%EPSS exploit probability (30 days) 99.9th percentile
9.8 CRITICALCVSS 3.1
Knownknown ransomware use
140days from NVD publication to KEV
What it is
Sitcore XP contains an insecure deserialization vulnerability which can allow for remote code execution.
Required action (CISA)
Apply updates per vendor instructions.
| CWE | CWE-502 |
|---|---|
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD published | 2021-11-05 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2021-42237.json · all KEV CVEs
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Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.