CVE-2019-3646
CWE-714Published: September 13, 2019· Updated: Jun 17, 2026
Official Description
DLL Search Order Hijacking vulnerability in Microsoft Windows client in McAfee Total Protection (MTP) Free Antivirus Trial 16.0.R18 and earlier allows local users to execute arbitrary code via execution from a compromised folder placed by an attacker with administrator rights.
Technical Analysis
CVE-2019-3646 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 6.5.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
All References (2)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2019-3646 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts