How severe is CVE-2017-3966?

CVE-2017-3966 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity high, and availability high.

Is CVE-2017-3966 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-3966?

CVE-2017-3966 affects Mcafee Network Security Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-3966?

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

When was CVE-2017-3966 published?

CVE-2017-3966 was published on 2018-04-04 and last updated on 2026-06-17.

CVE-2017-3966

CVE-2017-3966 is a medium-severity vulnerability in Mcafee Network Security Manager with a CVSS 3.x base score of 6.4. 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-613.

Key facts

Severity: Medium (CVSS 3.x base score 6.4)
CVSS v2: 6.5
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-613
Affected product: Mcafee Network Security Manager
Published: 2018-04-04
Last modified: 2026-06-17

Description

Exploitation of session variables, resource IDs and other trusted credentials vulnerability in the web interface in McAfee Network Security Management (NSM) before 8.2.7.42.2 allows remote attackers to exploit or harm a user's browser via reusing the exposed session token in the application URL.

Frequently asked questions

What is CVE-2017-3966?: Exploitation of session variables, resource IDs and other trusted credentials vulnerability in the web interface in McAfee Network Security Management (NSM) before 8.2.7.42.2 allows remote attackers to exploit or harm a user's browser via reusing the exposed session token in the application URL.
How severe is CVE-2017-3966?: CVE-2017-3966 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity high, and availability high.
Is CVE-2017-3966 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-3966?: CVE-2017-3966 affects Mcafee Network Security Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-3966?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-3966 published?: CVE-2017-3966 was published on 2018-04-04 and last updated on 2026-06-17.

References

https://kc.mcafee.com/corporate/index?page=content&id=SB10192

Affected products (1)

cpe:2.3:a:mcafee:network_security_manager:*:*:*:*:*:*:*:*

More vulnerabilities in Mcafee Network Security Manager

CVE-2017-3965 — High (CVSS 8.8): Cross-Site Request Forgery (CSRF) (aka Session Riding) vulnerability in the web interface in McAfee Network Security…
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CVE-2017-3971 — High (CVSS 8.2): Cryptanalysis vulnerability in the web interface in McAfee Network Security Management (NSM) before 8.2.7.42.2 allows…
CVE-2017-3969 — High (CVSS 8.2): Abuse of communication channels vulnerability in the server in McAfee Network Security Management (NSM) before…
CVE-2019-3606 — High (CVSS 7.7): Data Leakage Attacks vulnerability in the web portal component when in an MDR pair in McAfee Network Security…
CVE-2017-3968 — High (CVSS 7.5): Session fixation vulnerability in the web interface in McAfee Network Security Manager (NSM) before 8.2.7.42.2 and…

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