Calix GigaCenter ONT – Unauthenticated Telnet_CVE-2025-7635

8.7 / 10

HIGH

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

Description

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

Basic Information

ID CVE-2025-7635

Source Fluid Attacks

Published Sep 9, 2025 at 20:08

Affected Product

Vendor Calix

Product GigaCenter ONT

Version 844E

Affected Versions Calix GigaCenter ONT 844E
Calix GigaCenter ONT 844G
Calix GigaCenter ONT 844GE
Calix GigaCenter ONT 854GE

CWE Classification

CWE-306

References

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    "lastseen": "",
    "description": "Unauthenticated Telnet access vulnerability in Calix GigaCenter ONT allows root access.This issue affects GigaCenter ONT: 844E, 844G, 844GE, 854GE.",
    "published": "2025-09-09T20:08:37.767Z",
    "modified": "2025-09-09T20:08:37.767Z",
    "type": "cve",
    "title": "Calix GigaCenter ONT - Unauthenticated Telnet",
    "source": "Fluid Attacks",
    "references": "https://fluidattacks.com/advisories/sal\nhttps://www.calix.com",
    "id": "CVE-2025-7635",
    "bulletinFamily": "",
    "cwe": [
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    "cvelist": null,
    "sourceData": "Calix GigaCenter ONT 844E\nCalix GigaCenter ONT 844G\nCalix GigaCenter ONT 844GE\nCalix GigaCenter ONT 854GE",
    "sourceHref": "",
    "cvss": {
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        "version": "4.0"
    },
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        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
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        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
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        }
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    "href": "",
    "category_name": "CVE",
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    "product": "GigaCenter ONT",
    "version": "844E",
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}