Calix develops optical network termination equipment for broadband access, with identified vulnerabilities concentrated in its GigaCenter ONT product line. The recurring exposure centers on missing authentication controls for critical network functions, which reflects the access-control demands inherent to customer-premises equipment that bridges service-provider and user networks. Live severity, exploitation, and exposure counts are shown alongside this summary.
The number and severity of CVEs published that impact products developed by Calix over time
Signals from CVEs in this vendor scope (1 CVEs).
1 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2025-7635HIGH Unauthenticated Telnet access vulnerability in Calix GigaCenter ONT allows root access.This issue affects GigaCenter ONT: 844E, 844G, 844GE, 854GE. | Sep 9, 2025 | 7.7 | 25 | NO | NO |
Signals from CVEs in this vendor scope (1 CVEs).
An overview of all social media posts that mention a CVE ID that affects a product developed by Calix.
Media articles that mention a CVE ID that affects a product developed by Calix — matched by CVE ID, not by vendor name.