{"cveID":"CVE-2021-42237","vendorProject":"Sitecore","product":"XP","vulnerabilityName":"Sitecore XP Remote Command Execution Vulnerability","dateAdded":"2022-03-25","shortDescription":"Sitcore XP contains an insecure deserialization vulnerability which can allow for remote code execution.","requiredAction":"Apply updates per vendor instructions.","dueDate":"2022-04-15","knownRansomwareCampaignUse":"Known","notes":"https://nvd.nist.gov/vuln/detail/CVE-2021-42237","cwes":["CWE-502"],"year":2021,"state":"mapped","stale_reasons":[],"mappings":[{"domain":"enterprise","cve":"CVE-2021-42237","technique":"T1059","technique_name_at_mapping":"Command and Scripting Interpreter","mapping_type":"primary_impact","capability_group":"command_execution","comments":"CVE 2021-42237related to a remote code execution vulnerability through insecure deserialization. ","references":["https://www.nsa.gov/Press-Room/Press-Releases-Statements/Press-Release-View/Article/3181261/nsa-cisa-fbi-reveal-top-cves-exploited-by-chinese-state-sponsored-actors/","https://www.cyber.gov.au/acsc/view-all-content/alerts/active-exploitation-vulnerable-sitecore-experience-platform-content-management-systems","https://www.bleepingcomputer.com/news/security/sitecore-xp-rce-flaw-patched-last-month-now-actively-exploited/"],"status":"complete","source_file":"kev-07.28.2025_attack-16.1-enterprise.json","attack_version":"16.1","kev_snapshot":"07/28/2025"}],"techniques":[{"id":"T1059","domains":["enterprise"],"in_current_bundle":true,"live":true,"name_now":"Command and Scripting Interpreter","name_at_mapping":"Command and Scripting Interpreter","renamed":false,"revoked_by":null,"mapping_types":["primary_impact"],"sigma_rule_count":95,"has_detection_strategy":true}],"mapping_types":["primary_impact"],"has_exploitation_technique":false,"mapping_attack_versions":["16.1"],"mapping_domains":["enterprise"],"sigma_coverage":"full","sigma_rules_tagged_cve":["20c6ed1c-f7f0-4ea3-aa65-4f198e6acb0f"],"added_after_mapping_snapshot":false,"_source":"kevmap","_built":"2026-08-23 05:47 UTC","_attack_version":"19.2"}