How severe is CVE-2018-6661?

CVE-2018-6661 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-6661 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-6661?

CVE-2018-6661 affects Mcafee True Key. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-6661?

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-2018-6661 published?

CVE-2018-6661 was published on 2018-04-02 and last updated on 2026-06-17.

CVE-2018-6661

CVE-2018-6661 is a high-severity vulnerability in Mcafee True Key with a CVSS 3.x base score of 7.8. 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-426.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-426
Affected product: Mcafee True Key
Published: 2018-04-02
Last modified: 2026-06-17

Description

DLL Side-Loading vulnerability in Microsoft Windows Client in McAfee True Key before 4.20.110 allows local users to gain privilege elevation via not verifying a particular DLL file signature.

Frequently asked questions

What is CVE-2018-6661?: DLL Side-Loading vulnerability in Microsoft Windows Client in McAfee True Key before 4.20.110 allows local users to gain privilege elevation via not verifying a particular DLL file signature.
How severe is CVE-2018-6661?: CVE-2018-6661 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-6661 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-6661?: CVE-2018-6661 affects Mcafee True Key. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-6661?: 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-2018-6661 published?: CVE-2018-6661 was published on 2018-04-02 and last updated on 2026-06-17.

References

https://service.mcafee.com/webcenter/portal/cp/home/articleview?articleId=TS102801

Affected products (1)

cpe:2.3:a:mcafee:true_key:*:*:*:*:*:*:*:*

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