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Vulnerability record · CVE-2019-6739 · published 3 June 2019

CVE-2019-6739: Malwarebytes antimalware os command injection vulnerability

Malwarebytes · Antimalware

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Malwarebytes Antimalware 3.6.1.2711. User interaction is required to exploit this vulnerability in that the target must visit a malicious web page. There is an issue with the way the product handles URIs within certain schemes. The product does not warn the user that a dangerous navigation is about to take place. Because special characters in the URI are not sanitized, this could lead to the execution of arbitrary commands. An attacker can leverage this vulnerability to execute code in the context of the current user at medium integrity. Was ZDI-CAN-7162.

8.8 CVSS 3.1 High EPSS 9.9% · top 4.6% CWE-78 · OS command injectionCWE-77 · Command injection
8.8CVSS 3.1 base score, v2 6.8
9.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Malwarebytes Antimalware 3.6.1.2711. User interaction is required to exploit this vulnerability in that the target must visit a malicious web page. There is an issue with the way the product handles URIs within certain schemes. The product does not warn the user that a dangerous navigation is about to take place. Because special characters in the URI are not sanitized, this could lead to the execution of arbitrary commands. An attacker can leverage this vulnerability to execute code in the context of the current user at medium integrity. Was ZDI-CAN-7162.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.zerodayinitiative.com/advisories/ZDI-19-223/ Third Party AdvisoryVDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-19-223/ Third Party AdvisoryVDB Entry

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Source: NIST National Vulnerability Database (record CVE-2019-6739), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.