Privilege escalation in Qi-Anxin Qax Virus Removal
CVE-2026-3796
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.002 (6.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 6.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: -0.000
Affected products
- Qi-Anxin Qax Virus Removal — versions 2025-10-22
- Qianxin Qax Internet Control Gateway
Weakness classification (CWE)
Public proof-of-concept exploits
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/cwjchoi01/FocusKiller (related, Product)
- github.com/cwjchoi01/FocusKiller/tree/main/FocusKiller (Product, exploit)
Frequently asked questions
- What is CVE-2026-3796?
- CVE-2026-3796 is a medium-severity vulnerability in Qi-Anxin Qax Virus Removal, classified under Incorrect Privilege Assignment. CVSS score: 5.3/10. Published 2026-03-09.
- How severe is CVE-2026-3796?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2026-3796 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.