CVE-2017-7783

PoC —

CVSS 3.0

7.5 high

EPSS

14%p96

Published

Jun 11, 2018 (Jun 11, 2018)

Modified

Jun 17, 2026

Description

If a long user name is used in a username/password combination in a site URL (such as " http://UserName:[email protected]"), the resulting modal prompt will hang in a non-responsive state or crash, causing a denial of service. This vulnerability affects Firefox < 55.

Vendors: mozilla
Products: firefox
Weakness: CWE-20
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (13.5%)

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