High severity · published Aug 7, 2026
CVE-2026-19193
Jiangmin Antivirus Minifilter Port kvcore.sys MessageNotifyCallback access control
7.8
CVSS
0.2%
EPSS
No
On KEV
Description
A flaw has been found in Jiangmin Antivirus 21. Impacted is the function MessageNotifyCallback in the library kvcore.sys of the component Minifilter Port. Executing a manipulation can lead to improper access controls. The attack needs to be launched locally. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 5% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AN
Antivirus · Jiangmin
21 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-19193
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-19193
github.com
https://github.com/patrickt2017/CVE-2026-19193-PoC
vuldb.com
https://vuldb.com/cve/CVE-2026-19193
vuldb.com
https://vuldb.com/submit/864551
vuldb.com
https://vuldb.com/vuln/386711
vuldb.com
https://vuldb.com/vuln/386711/cti
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