{"cveID":"CVE-2023-21674","vendorProject":"Microsoft","product":"Windows","vulnerabilityName":"Microsoft Windows Advanced Local Procedure Call (ALPC) Privilege Escalation Vulnerability","dateAdded":"2023-01-10","shortDescription":"Microsoft Windows Advanced Local Procedure Call (ALPC) contains an unspecified vulnerability that allows for privilege escalation.","requiredAction":"Apply updates per vendor instructions.","dueDate":"2023-01-31","knownRansomwareCampaignUse":"Unknown","notes":"https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-21674;  https://nvd.nist.gov/vuln/detail/CVE-2023-21674","cwes":["CWE-416"],"year":2023,"state":"mapped","stale_reasons":[],"mappings":[{"domain":"enterprise","cve":"CVE-2023-21674","technique":"T1078","technique_name_at_mapping":"Valid Accounts","mapping_type":"exploitation_technique","capability_group":"priv_escalation","comments":"This vulnerability is exploited by an authenticated adversary. It is identified as requiring local access via Microsoft; however, other reports have identified remote, authenticated adversaries can exploit this vulnerability. A successful exploitation would grant an attacker SYSTEM level privileges. \n\nThis vulnerability has been exploited in the wild; however, technical details of how this was leveraged in an attack has not been publicly shared. ","references":["https://securityonline.info/cisa-adds-cve-2023-21674-vulnerability-to-exploited-catalog/","https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21674"],"status":"complete","source_file":"kev-07.28.2025_attack-16.1-enterprise.json","attack_version":"16.1","kev_snapshot":"07/28/2025"},{"domain":"enterprise","cve":"CVE-2023-21674","technique":"T1068","technique_name_at_mapping":"Exploitation for Privilege Escalation","mapping_type":"primary_impact","capability_group":"priv_escalation","comments":"This vulnerability is exploited by an authenticated adversary. It is identified as requiring local access via Microsoft; however, other reports have identified remote, authenticated adversaries can exploit this vulnerability. A successful exploitation would grant an attacker SYSTEM level privileges. \n\nThis vulnerability has been exploited in the wild; however, technical details of how this was leveraged in an attack has not been publicly shared. ","references":["https://securityonline.info/cisa-adds-cve-2023-21674-vulnerability-to-exploited-catalog/","https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21674"],"status":"complete","source_file":"kev-07.28.2025_attack-16.1-enterprise.json","attack_version":"16.1","kev_snapshot":"07/28/2025"}],"techniques":[{"id":"T1068","domains":["enterprise"],"in_current_bundle":true,"live":true,"name_now":"Exploitation for Privilege Escalation","name_at_mapping":"Exploitation for Privilege Escalation","renamed":false,"revoked_by":null,"mapping_types":["primary_impact"],"sigma_rule_count":31,"has_detection_strategy":true},{"id":"T1078","domains":["enterprise"],"in_current_bundle":true,"live":true,"name_now":"Valid Accounts","name_at_mapping":"Valid Accounts","renamed":false,"revoked_by":null,"mapping_types":["exploitation_technique"],"sigma_rule_count":56,"has_detection_strategy":true}],"mapping_types":["exploitation_technique","primary_impact"],"has_exploitation_technique":true,"mapping_attack_versions":["16.1"],"mapping_domains":["enterprise"],"sigma_coverage":"full","sigma_rules_tagged_cve":[],"added_after_mapping_snapshot":false,"_source":"kevmap","_built":"2026-08-23 05:47 UTC","_attack_version":"19.2"}