How severe is CVE-2019-3666?

CVE-2019-3666 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2019-3666 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-3666?

CVE-2019-3666 affects Mcafee Webadvisor. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-3666?

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

When was CVE-2019-3666 published?

CVE-2019-3666 was published on 2019-12-03 and last updated on 2026-06-17.

CVE-2019-3666

CVE-2019-3666 is a medium-severity vulnerability in Mcafee Webadvisor with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 2% (72nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Mcafee Webadvisor
Published: 2019-12-03
Last modified: 2026-06-17

Description

API Abuse/Misuse vulnerability in the web interface in McAfee Web Advisor (WA) prior to 4.1.1.48 allows remote unauthenticated attacker to allow the browser to navigate to restricted websites via a carefully crafted web site.

Frequently asked questions

What is CVE-2019-3666?: API Abuse/Misuse vulnerability in the web interface in McAfee Web Advisor (WA) prior to 4.1.1.48 allows remote unauthenticated attacker to allow the browser to navigate to restricted websites via a carefully crafted web site.
How severe is CVE-2019-3666?: CVE-2019-3666 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2019-3666 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-3666?: CVE-2019-3666 affects Mcafee Webadvisor. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-3666?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-3666 published?: CVE-2019-3666 was published on 2019-12-03 and last updated on 2026-06-17.

References

http://service.mcafee.com/FAQDocument.aspx?&id=TS102991

Affected products (1)

cpe:2.3:a:mcafee:webadvisor:*:*:*:*:*:*:*:*

More vulnerabilities in Mcafee Webadvisor

CVE-2022-0815 — Medium (CVSS 6.5): Improper access control vulnerability in McAfee WebAdvisor Chrome and Edge browser extensions up to 8.1.0.1895 allows a…
CVE-2019-3665 — Medium (CVSS 6.5): Code Injection vulnerability in the web interface in McAfee Web Advisor (WA) prior to 4.1.1.48 allows remote…

All CVEs affecting Mcafee Webadvisor →