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VULNERABILITIES

CVE-2025-7635 Details

Description

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

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.7 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://fluidattacks.com/advisories/sal CISA-ADPExploitMitigationThird Party Advisory
https://fluidattacks.com/advisories/sal [email protected]ExploitMitigationThird Party Advisory
https://revers3everything.com/calix-case-five-0-days-five-cves/ [email protected]Third Party Advisory
https://www.calix.com [email protected]Product

Weakness Enumeration

CWE-IDCWE NameSource
CWE-306Missing Authentication for Critical Function[email protected]

Affected Products

ProductVersions
calix calix gigacenter ont
844e
844g
844ge
854ge

CPE

  • cpe:2.3:a:calix:calix_gigacenter_ont:*:*:*:*:*:*:*:*
  • cpe:2.3:a:calix:calix_gigacenter_ont:844e:*:*:*:*:*:*:*
  • cpe:2.3:a:calix:calix_gigacenter_ont:844g:*:*:*:*:*:*:*
  • cpe:2.3:a:calix:calix_gigacenter_ont:844ge:*:*:*:*:*:*:*
  • cpe:2.3:a:calix:calix_gigacenter_ont:854ge:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

6 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2025-7635
NVD Published Date:
Sep 9, 2025
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2025-7635 Details - Not Deferred