This vulnerability affects V-Secure Jingyun Antivirus 2.4.2.39, specifically an unknown function in the ZyArk.sys kernel driver. Improper access controls in this component allow a local attacker with limited privileges to potentially escalate their access or perform unauthorized actions. The exploit has been publicly disclosed, increasing the risk of exploitation. The vendor has not provided any response or patch, and no official remediation level is indicated.

An attacker with local access and limited privileges can exploit this vulnerability to bypass access controls, potentially leading to privilege escalation or unauthorized kernel-level operations. The CVSS 4.0 score of 8.5 reflects high impact on confidentiality, integrity, and availability. No known exploits are reported in the wild yet, but public exploit availability increases risk.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vendor has not responded and no patch is available, users should restrict local access to trusted users only and monitor for suspicious activity related to the ZyArk.sys driver. Avoid running untrusted code locally until a fix is released.