What’s Vulnerable › Vulnerabilities

CVE-2019-3971

• Severity: medium (CVSS 5.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-07-17 · updated 2026-06-17

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.

Affected products

• Comodo Antivirus: through 12.0.0.6810

References

• https://www.tenable.com/security/research/tra-2019-34
• https://www.tenable.com/security/research/tra-2019-34

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