CVE-2019-3916: Verizon Fios Quantum Gateway g1100 Firmware

High severity, CVSS 7.5. EPSS: 2.1% chance of exploitation in the next 30 days.

Information disclosure vulnerability in Verizon Fios Quantum Gateway (G1100) firmware version 02.01.00.05 allows an remote, unauthenticated attacker to retrieve the value of the password salt by simply requesting an API URL in a web browser (e.g. /api).

Affected products

• Verizon Fios Quantum Gateway g1100 Firmware: version 02.01.00.05 only

Published 2019-04-11. Last modified 2026-06-17.