CVE-2019-11728

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CVSS 3.1

4.7 medium

EPSS

1%p64

Published

Jul 23, 2019 (Jul 23, 2019)

Modified

Jun 17, 2026

Description

The HTTP Alternative Services header, Alt-Svc, can be used by a malicious site to scan all TCP ports of any host that the accessible to a user when web content is loaded. This vulnerability affects Firefox < 68.

Vendors: mozilla opensuse
Products: firefox, leap
Weakness: CWE-668
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (1.1%)

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