How severe is CVE-2018-6678?

CVE-2018-6678 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-6678 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-6678?

CVE-2018-6678 affects Mcafee Mcafee Web Gateway. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-6678?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2018-6678 published?

CVE-2018-6678 was published on 2018-07-23 and last updated on 2026-06-17.

CVE-2018-6678

CVE-2018-6678 is a critical-severity vulnerability in Mcafee Mcafee Web Gateway with a CVSS 3.x base score of 9.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
CVSS v2: 6.5
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Mcafee Mcafee Web Gateway
Published: 2018-07-23
Last modified: 2026-06-17

Description

Configuration/Environment manipulation vulnerability in the administrative interface in McAfee Web Gateway (MWG) MWG 7.8.1.x allows authenticated administrator users to execute arbitrary commands via unspecified vectors.

Frequently asked questions

What is CVE-2018-6678?: Configuration/Environment manipulation vulnerability in the administrative interface in McAfee Web Gateway (MWG) MWG 7.8.1.x allows authenticated administrator users to execute arbitrary commands via unspecified vectors.
How severe is CVE-2018-6678?: CVE-2018-6678 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-6678 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-6678?: CVE-2018-6678 affects Mcafee Mcafee Web Gateway. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-6678?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2018-6678 published?: CVE-2018-6678 was published on 2018-07-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mcafee:mcafee_web_gateway:7.8.1.0:*:*:*:*:*:*:*

More vulnerabilities in Mcafee Mcafee Web Gateway

CVE-2018-6667 — Critical (CVSS 10.0): Authentication Bypass vulnerability in the administrative user interface in McAfee Web Gateway 7.8.1.0 through 7.8.1.5…
CVE-2018-6677 — Critical (CVSS 9.1): Directory Traversal vulnerability in the administrative user interface in McAfee Web Gateway (MWG) MWG 7.8.1.x allows…
CVE-2019-3581 — High (CVSS 7.5): Improper input validation in the proxy component of McAfee Web Gateway 7.8.2.0 and later allows remote attackers to…

All CVEs affecting Mcafee Mcafee Web Gateway →