CVE-2026-19193Public exploit

Process termination via permissive Minifilter port

Published Aug 7, 2026 · Updated Aug 7, 2026

Improper access control in Jiangmin Antivirus 21 allows local users to terminate arbitrary processes through the kvcore.sys Minifilter port. KvCorePortX0 grants connection rights to EVERYONE, and MessageNotifyCallback passes a supplied PID through a kernel call chain ending in ZwTerminateProcess without authenticating the caller. Exploitation requires a running driver and, in the published PoC, an administrator command prompt; successful use stops processes without executing code.

CVSS severity7.8
High
EPSS probability0.17%
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 Jiangmin Antivirus 21 allows local users to terminate arbitrary processes through the kvcore.sys Minifilter port. KvCorePortX0 grants connection rights to EVERYONE, and MessageNotifyCallback passes a supplied PID through a kernel call chain ending in ZwTerminateProcess without authenticating the caller. Exploitation requires a running driver and, in the published PoC, an administrator command prompt; successful use stops processes without executing code.

The record

CVE
CVE-2026-19193
Published
Aug 7, 2026
Updated
Aug 7, 2026
Vendor
Jiangmin
Product
Jiangmin Antivirus
Classifications
CWE-284, CWE-266, T1489
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 7, 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=21

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Jiangmin · Jiangmin Antivirusversion=21

Published CVSS scores

6.8VulDBAV:L/AC:L/Au:S/C:C/I:C/A:C
7.1VulDBCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
7.8VulDBCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8VulDBCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

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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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