Excessive Privileges Vulnerability in Calix GigaCenter ONT Devices
CVE-2025-53914

7HIGH

Key Information:

Vendor

Calix

Status
Gigacenter Ont
Vendor
CVE Published:
9 September 2025

What is CVE-2025-53914?

The excessive privileges vulnerability in Calix GigaCenter ONT devices, driven by flaws in Broadcom SoC modules, poses significant risks of privilege abuse. This issue affects various models, such as the 844E, 844G, 844GE, 854GE, 812G, 813G, and 818G. Attackers could exploit this weakness to gain unauthorized access, compromising system integrity and user security.

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Affected Version(s)

GigaCenter ONT 844E

GigaCenter ONT 844G

GigaCenter ONT 844GE

References

https://fluidattacks.com/advisories/sheivi
third-party-advisory
https://www.calix.com
productrelated
https://revers3everything.com/calix-case-five-0-days-five...
third-party-advisory

CVSS V4

Score:
7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Physical
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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