{"id":"CVE-2019-3971","aliases":["EUVD-2019-13578","GHSA-v3cp-w37g-979x"],"status":"published","title":"Comodo Antivirus versions up to 12.0.0.6810 are vulnerable to a local Denial of Service affecting...","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.","severity":{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00368,"percentile":0.30903,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2019-07-17T20:35:01Z","modified":"2026-06-17T02:35:58Z","products":[{"vendor":"comodo","product":"antivirus"},{"vendor":"comodo","product":"comodo antivirus"}],"references":[{"url":"https://www.tenable.com/security/research/tra-2019-34","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-3971"},{"url":"https://github.com/advisories/GHSA-v3cp-w37g-979x"}],"sources":{"cve":[{"id":"CVE-2019-3971","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.","status":"published","published":"2019-07-17T20:35:01Z","modified":"2024-08-04T19:26:27.555Z","updated_at":"2026-11-02T14:20:23.048861Z"}],"euvd":[{"id":"EUVD-2019-13578","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.","status":"published","published":"2019-07-17T20:35:01Z","modified":"2024-08-04T19:26:27Z","updated_at":"2026-11-03T03:06:54.362786Z"}],"ghsa":[{"id":"GHSA-v3cp-w37g-979x","title":"Comodo Antivirus versions up to 12.0.0.6810 are vulnerable to a local Denial of Service affecting...","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.","status":"published","published":"2022-05-24T16:50:36Z","modified":"2023-01-28T05:06:18Z","updated_at":"2026-11-02T14:44:25.398405Z"}],"nvd":[{"id":"CVE-2019-3971","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.","status":"published","published":"2019-07-17T21:15:12.657Z","modified":"2026-06-17T02:35:58.527Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":2.1,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:P","level":"low","assessor":"primary"}],"updated_at":"2026-11-02T14:05:20.616405Z"}]}}