How severe is CVE-2017-3898?

CVE-2017-3898 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2017-3898 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-3898?

CVE-2017-3898 affects Mcafee Livesafe. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-3898?

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

When was CVE-2017-3898 published?

CVE-2017-3898 was published on 2017-09-01 and last updated on 2026-06-17.

CVE-2017-3898

CVE-2017-3898 is a medium-severity vulnerability in Mcafee Livesafe with a CVSS 3.x base score of 5.9. 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-20.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v2: 4.3
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Mcafee Livesafe
Published: 2017-09-01
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2017-3898?: CVE-2017-3898 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2017-3898 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-3898?: CVE-2017-3898 affects Mcafee Livesafe. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-3898?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-3898 published?: CVE-2017-3898 was published on 2017-09-01 and last updated on 2026-06-17.

References

http://service.mcafee.com/FAQDocument.aspx?lc=1033&id=TS102723

Affected products (1)

cpe:2.3:a:mcafee:livesafe:*:*:*:*:*:*:*:*

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