7.5

CVE-2019-3916: verizon fios_quantum_gateway_g1100_firmware Direct Request

Modified
Published 11-04-2019Last modified 04-08-2024

Vulnerability summary

CVE-2019-3916 is a high (CVSS 7.5) Direct Request vulnerability in verizon fios_quantum_gateway_g1100_firmware. EPSS estimates a 2.06% chance of exploitation in the next 30 days, higher than 81.3% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (NVD); no exploitation reported by the 5 checked sources; EPSS 2% (FIRST, 04-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.0 (NVD)
EPSS score
2.06%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Timeline

  1. 11-04-2019
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

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).

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

2.06%

Chance of exploitation in the next 30 days

Percentile

81%

Versus all other CVEs

30-day change

No change 0.00 pp

From 2.06% on 05-10-2026

05-10-202604-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Verizon1 product

1 vendor · 1 product

References

1 links