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Vulnerability record · CVE-2025-63409 · published 24 February 2026

CVE-2025-63409: Gcomtw gcom epon 1ge firmware improper access control vulnerability

GGcomtw · Gcom Epon 1ge Firmware

Privilege escalation and improper access control in GCOM EPON 1GE C00R371V00B01 allows remote authenticated users to modify administrator only settings and extract administrator credentials.

8.8 CVSS 3.1 High EPSS 0.29% · top 80.9% CWE-284 · Improper access control
8.8CVSS 3.1 base score
0.29%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
5 Jul 2026Last modified by NVD

Description

Privilege escalation and improper access control in GCOM EPON 1GE C00R371V00B01 allows remote authenticated users to modify administrator only settings and extract administrator credentials.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/theShinigami/CVE-Disclosures/tree/main/CVE-2025-63409 Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2025-63409), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.