Is CVE-2019-3915 actively exploited?

No active exploitation of CVE-2019-3915 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2019-3915 be exploited remotely?

Partially. CVE-2019-3915 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2019-3915?

CVE-2019-3915 has a CVSS score of 7.5 (HIGH).

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HIGH

CVE-2019-3915

CWE-294Published: April 11, 2019· Updated: Jun 17, 2026

7.5

CVSS v3.1

Official Description

Authentication Bypass by Capture-replay vulnerability in Verizon Fios Quantum Gateway (G1100) firmware version 02.01.00.05 allows an unauthenticated attacker with adjacent network access to intercept and replay login requests to gain access to the administrative web interface.

NVD Source

Technical Analysis

CVE-2019-3915 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.5.