CVE-2019-3915
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.64%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.64% probability · 51th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-294
- Affected
- verizon/fios quantum gateway g1100 firmware
- Source
- vulnreport@tenable.com
EPSS 0.6% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.