CVE-2025-71056

State: Published
Severity: 8.1 High
Published: Feb 23, 2026
Updated: Jul 5, 2026
Reserved: Jan 9, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	8.1 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N	CISA-ADP

Weaknesses

CWE-290 Authentication Bypass by Spoofing

Affected Products

Product	Versions
n/an/a	n/aAffected

References

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

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