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CVE-2019-3654
Client Proxy (MCP) - Authentication Bypass vulnerability
Medium5.3EPSS 0.66%
- Published
- Updated
- Reserved
- Assigned by
- trellix
Description
Authentication Bypass vulnerability in the Microsoft Windows client in McAfee Client Proxy (MCP) prior to 3.0.0 allows local user to bypass scanning of web traffic and gain access to blocked sites for a short period of time via generating an authorization key on the client which should only be generated by the network administrator.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| trellixCNA (assigner) | 3.1 | Medium5.3 | CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | High8.6 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.66% · top 48% of all CVEs (6 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.
Weakness
- Authentication Bypass vulnerability
- CWE-287 (opens in a new tab)All about CWE-287 and its CVEs
Affected products
- affected unspecified – < 3.0.0
References (1)
- https://kc.mcafee.com/corporate/index?page=content&id=SB10305 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2019-3654)Record last updated .