What’s Vulnerable › Vulnerabilities

CVE-2026-3796: Qi-ANXIN QAX Virus Removal Mini Filter Driver QKSecureIO_Imp.sys ZwTerminateProcess access control

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-09 · updated 2026-06-17
• Weakness: CWE-266

Description

A weakness has been identified in Qi-ANXIN QAX Virus Removal up to 2025-10-22. The affected element is the function ZwTerminateProcess in the library QKSecureIO_Imp.sys of the component Mini Filter Driver. Executing a manipulation can lead to improper access controls. The attack is restricted to local execution. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

• Qi-ANXIN QAX Virus Removal: through 2025-10-22

References

• https://github.com/cwjchoi01/FocusKiller
• https://github.com/cwjchoi01/FocusKiller/tree/main/FocusKiller
• https://vuldb.com/?ctiid.349763
• https://vuldb.com/?id.349763
• https://vuldb.com/?submit.758991

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