HOMEVULNERABILITIESCVE-2019-3646
MEDIUM

CVE-2019-3646

CWE-714Published: September 13, 2019· Updated: Jun 17, 2026

6.5
CVSS v3.1

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.

NVD Source

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

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.High
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

Affected Vendors & Products

mcafee1 product(s)
total protection
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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All References (2)

Quick Facts

CVE IDCVE-2019-3646
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-714
CISA KEVNo
Affected1 vendor(s)
PublishedSep 13, 2019

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2019-3646 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.