CVE-2026-19193 PUBLISHED

A flaw has been found in Jiangmin Antivirus 21. Impacted is the function MessageNotifyCallback in the library kvcore.sys of the component Minifilter Port. Executing a manipulation can lead to improper access controls. The attack needs to be launched locally. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

• patrickt2017 (VulDB User) reporter
• VulDB CNA Team coordinator

• VDB-386711 | Jiangmin Antivirus Minifilter Port kvcore.sys MessageNotifyCallback access control
• VDB-386711 | CTI Indicators (IOB, IOC, TTP, IOA)
• CVE-2026-19193 | CVE Analysis and Report
• Submit #864551 | Jiangmin Jiangmin Antivirus V21 Exposed Minifilter Port with Insufficient Access Control
• https://github.com/patrickt2017/research/issues/1

• Improper Access Controls CWE
• Incorrect Privilege Assignment CWE