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Vulnerability record · CVE-2025-71056 · published 23 February 2026

CVE-2025-71056: Authentication bypass by spoofing vulnerability

Improper session management in GCOM EPON 1GE ONU version C00R371V00B01 allows attackers to execute a session hijacking attack via spoofing the IP address of an authenticated user.

8.1 CVSS 3.1 High EPSS 0.22% · top 89.1% CWE-290 · Authentication bypass by spoofing Deferred
8.1CVSS 3.1 base score
0.22%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
5 Jul 2026Last modified by NVD

Description

Improper session management in GCOM EPON 1GE ONU version C00R371V00B01 allows attackers to execute a session hijacking attack via spoofing the IP address of an authenticated user.

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

References

LinkTags
https://github.com/theShinigami/CVE-Disclosures/blob/main/CVE-2025-71056/README.md
https://johnbai.en.made-in-china.com/product/JXnENzmlJFpv/China-H18gn-Series-Gpon-Ont-ONU.html

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Source: NIST National Vulnerability Database (record CVE-2025-71056), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.