CVE-2026-3796Public exploit

Arbitrary process termination via caller impersonation

Published Mar 9, 2026 · Updated Mar 9, 2026

Improper access control in QAX Virus Removal 2025-10-22 allows local users to terminate arbitrary processes through its filter driver. QKSecureIO_Imp.sys trusts the caller process image and passes an attacker-supplied target to ZwTerminateProcess without adequately validating which process may be killed. A low-privileged caller must impersonate an approved process image, after which protected security processes can be stopped without user interaction.

CVSS severity7.8
High
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in QAX Virus Removal 2025-10-22 allows local users to terminate arbitrary processes through its filter driver. QKSecureIO_Imp.sys trusts the caller process image and passes an attacker-supplied target to ZwTerminateProcess without adequately validating which process may be killed. A low-privileged caller must impersonate an approved process image, after which protected security processes can be stopped without user interaction.

The record

CVE
CVE-2026-3796
Published
Mar 9, 2026
Updated
Mar 9, 2026
Vendor
Qi An Xin Technology Group Inc.
Product
QAX Virus Removal
Classifications
CWE-284, CWE-266, T1489
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2025-10-22

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Qi An Xin Technology Group Inc. · QAX Virus Removalversion=2025-10-22

Published CVSS scores

5.3VulDBCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
1.9VulDBCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.3VulDBAV:L/AC:L/Au:S/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
CWE-266Incorrect Privilege Assignment
T1489Service Stop

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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