Unauthenticated Telnet access vulnerability in Calix GigaCenter ONT allows root access.This issue affects GigaCenter ONT: 844E, 844G, 844GE, 854GE.

Metrics

Attack Vector Adjacent Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

No data.

No data.

No data.

No data.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://fluidattacks.com/advisories/sal cve-icon cve-icon
https://www.calix.com cve-icon cve-icon
History

Tue, 09 Sep 2025 20:15:00 +0000

Type Values Removed Values Added
Description Unauthenticated Telnet access vulnerability in Calix GigaCenter ONT allows root access.This issue affects GigaCenter ONT: 844E, 844G, 844GE, 854GE.
Title Calix GigaCenter ONT - Unauthenticated Telnet
Weaknesses CWE-306
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}
cve-icon MITRE

Status: PUBLISHED

Assigner: Fluid Attacks

Published:

Updated: 2025-09-09T20:08:37.767Z

Reserved: 2025-07-14T12:49:39.283Z

Link: CVE-2025-7635

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2025-09-09T20:15:50.673

Modified: 2025-09-09T20:15:50.673

Link: CVE-2025-7635

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.