What is CVE-2017-3898?

CVE-2017-3898 is a medium-severity vulnerability in Mcafee Live Safe, classified under Improper Input Validation. CVSS score: 5.9/10. Published 2017-09-01.

How severe is CVE-2017-3898?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Improper input validation in Mcafee Live Safe

CVE-2017-3898

A man-in-the-middle attack vulnerability in the non-certificate-based authentication mechanism in McAfee LiveSafe (MLS) versions prior to 16.0.3 allows network attackers to modify the Windows registry value associated with the McAfee update via the HTTP backend-response.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2017-09-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.032 (87.6th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 87.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.032 · newest: 0.032 · change: 0.000

Affected products

Mcafee Live Safe — versions 16.0.3
Mcafee Livesafe

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

service.mcafee.com/FAQDocument.aspx (Vendor Advisory)

Frequently asked questions

What is CVE-2017-3898?: CVE-2017-3898 is a medium-severity vulnerability in Mcafee Live Safe, classified under Improper Input Validation. CVSS score: 5.9/10. Published 2017-09-01.
How severe is CVE-2017-3898?: Medium severity. CVSS v3 base score is 5.9 out of 10.