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CVE-2019-3581
McAfee Web Gateway denial of service attack due to Improper Input Validation
High7.5EPSS 2.3%
- Published
- Updated
- Reserved
- Assigned by
- trellix
Description
Improper input validation in the proxy component of McAfee Web Gateway 7.8.2.0 and later allows remote attackers to cause a denial of service via a crafted HTTP request parameter.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| trellixCNA (assigner) | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 2.3% · top 17% of all CVEs (6 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
- affected 7.8.2 – < 7.8.2*
- affected 7.8.2.5 – < 7.8.2.5
- affected 8.0 – < 8.0*
- affected 8.0.2 – < 8.0.2
What to do
Solution: Update to MWG 7.8.2.5 or 8.0.2
References (1)
- https://kc.mcafee.com/corporate/index?page=content&id=SB10264 (opens in a new tab)x_refsource_CONFIRMx_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-2019-3581)Record last updated .