CVE-2019-3971

Public Exploit

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.

5.5

CVSS

Severity: Medium

CVSS 3.0 •

CVSS 2.0 •

EPSS 0.05%

Third-Party Advisory tenable.com

Affected: n/a Comodo Antivirus

References

Link	Tags
https://www.tenable.com/security/research/tra-2019-34	third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2019-3971?: CVE-2019-3971 has been scored as a medium severity vulnerability.
How to fix CVE-2019-3971?: To fix CVE-2019-3971, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-3971 being actively exploited in the wild?: It is possible that CVE-2019-3971 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2019-3971?: CVE-2019-3971 affects n/a Comodo Antivirus.

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