CVE-2019-3971

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

Comodo Antivirus versions up to 12.0.0.6810 are vulnerable to a local Denial of Service affecting CmdVirth.exe via its LPC port "cmdvrtLPCServerPort". A low privileged local process can connect to this port and send an LPC_DATAGRAM, which triggers an Access Violation due to hardcoded NULLs used for Source parameter in a memcpy operation that is called for this handler. This results in CmdVirth.exe and its child svchost.exe instances to terminate.

Metrics

CVSS 3.0 5.5/10CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected software

Vendor	Product	Versions
n/a	Comodo Antivirus	Versions 12.0.0.6810 and below

References

https://www.tenable.com/security/research/tra-2019-34Exploit, Third Party Advisory
https://www.tenable.com/security/research/tra-2019-34Exploit, Third Party Advisory

Timeline

Published: Jul 17, 2019
Last modified: Jun 17, 2026
NVD status: Modified

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