How severe is CVE-2019-3646?

CVE-2019-3646 has a CVSS 3.x base score of 6.9, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity high, and availability low.

Is CVE-2019-3646 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-3646?

CVE-2019-3646 affects Mcafee Total Protection. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-3646?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-3646 published?

CVE-2019-3646 was published on 2019-09-13 and last updated on 2026-06-17.

CVE-2019-3646

CVE-2019-3646 is a medium-severity vulnerability in Mcafee Total Protection with a CVSS 3.x base score of 6.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-426.

Key facts

Severity: Medium (CVSS 3.x base score 6.9)
CVSS v2: 6.0
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-426
Affected product: Mcafee Total Protection
Published: 2019-09-13
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2019-3646?: 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.
How severe is CVE-2019-3646?: CVE-2019-3646 has a CVSS 3.x base score of 6.9, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity high, and availability low.
Is CVE-2019-3646 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-3646?: CVE-2019-3646 affects Mcafee Total Protection. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-3646?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-3646 published?: CVE-2019-3646 was published on 2019-09-13 and last updated on 2026-06-17.

References

http://service.mcafee.com/FAQDocument.aspx?&id=TS102968

Affected products (1)

cpe:2.3:a:mcafee:total_protection:*:*:*:*:free_trial:*:*:*

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