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TI-2018-04917 Aliases CVE-2018-6677GHSA-77x6-r257-2x55

McAfee Web Gateway (MWG) - Directory Traversal vulnerability

Priority MEDIUM 43CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

Directory Traversal vulnerability in the administrative user interface in McAfee Web Gateway (MWG) MWG 7.8.1.x allows authenticated administrator users to gain elevated privileges via unspecified vectors.

Why it matters now

EPSS 0.02135 82nd percentileScored 2026-11-07
Fix Fixed McAfee Web Gateway (MWG) (McAfee): 7.8.2

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
McAfeeMcAfee Web Gateway (MWG)7.8.1 and later7.8.2Patch availableCNA
  • McAfee Web Gateway (MWG) VendorMcAfee Affected 7.8.1 and later Fixed in 7.8.2 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:mcafee:mcafee_web_gateway:7.8.1.0:*:*:*:*:*:*:*7.8.1.0VulnerableMcAfee
  • cpe:2.3:a:mcafee:mcafee_web_gateway:7.8.1.0:*:*:*:*:*:*:* Versions 7.8.1.0 Vulnerable ·McAfee

Remediation

  • Fix · CNA McAfee Web Gateway (MWG) (McAfee) Fixed in 7.8.2

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    McAfee Web Gateway (MWG) 7.8.1*, 7.8.2*

    2 records Highest priority Priority MEDIUM 2 MEDIUM

    Other records, highest priority first

    • TI-2018-04918 McAfee Web Gateway (MWG) - Configuration/Environment manipulation vulnerabilityPriority MEDIUM 42
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-6677
  2. 2026-10-03 Alias added: GHSA-77x6-r257-2x55

References

Other 1

  • TI-2018-04910 McAfee Web Gateway - Authentication Bypass vulnerability CVSS 3.0CRITICAL 10.0
  • TI-2018-04918 McAfee Web Gateway (MWG) - Configuration/Environment manipulation vulnerability CVSS 3.1CRITICAL 9.1
  • TI-2019-02646 McAfee Web Gateway denial of service attack due to Improper Input Validation CVSS 3.0HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences