CVE-2017-3971

CVE-2017-3971 is a high-severity vulnerability in Mcafee Network Security Manager with a CVSS 3.x base score of 8.2. 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-326.

Key facts

Description

Cryptanalysis vulnerability in the web interface in McAfee Network Security Management (NSM) before 8.2.7.42.2 allows attackers to view confidential information via insecure use of RC4 encryption cyphers.

Frequently asked questions

What is CVE-2017-3971?
Cryptanalysis vulnerability in the web interface in McAfee Network Security Management (NSM) before 8.2.7.42.2 allows attackers to view confidential information via insecure use of RC4 encryption cyphers.
How severe is CVE-2017-3971?
CVE-2017-3971 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity low, and availability low.
Is CVE-2017-3971 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-3971?
CVE-2017-3971 affects Mcafee Network Security Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-3971?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2017-3971 published?
CVE-2017-3971 was published on 2018-04-04 and last updated on 2026-06-17.

References

Affected products (1)

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