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TI-2019-02921 Aliases CVE-2019-3915GHSA-mv24-4hc4-j3rr

Authentication bypass by capture-replay in Verizon Fios Quantum Gateway

Priority LOW 34CWE-294Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-294.

Summary

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.

Why it matters now

EPSS 0.00642 51st percentileScored 2026-11-08
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
VerizonFios Quantum Gateway (G1100)Firmware version 02.01.00.05—No fix listedCNA
  • Fios Quantum Gateway (G1100) VendorVerizon Affected Firmware version 02.01.00.05 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:verizon:fios_quantum_gateway_g1100_firmware:02.01.00.05:*:*:*:*:*:*:*02.01.00.05VulnerableVerizon
cpe:2.3:h:verizon:fios_quantum_gateway_g1100:-:*:*:*:*:*:*:*not specified by NVDRunning onVerizon
  • cpe:2.3:o:verizon:fios_quantum_gateway_g1100_firmware:02.01.00.05:*:*:*:*:*:*:* Versions 02.01.00.05 Vulnerable ·Verizon
  • cpe:2.3:h:verizon:fios_quantum_gateway_g1100:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Verizon

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-3915
  2. 2026-10-03 Alias added: GHSA-mv24-4hc4-j3rr
  3. 2026-10-21 EPSS moved to the 50th–90th percentile

References

Advisory 1

  • TI-2019-02920 OS command injection in Verizon Fios Quantum Gateway CVSS 3.0HIGH 7.2
  • TI-2019-02922 Information disclosure vulnerability in Verizon Fios Quantum Gateway (G1100) firmware… CVSS 3.0HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences