CVE-2025-71056
Published: February 23, 2026· Updated: Feb 27, 2026
Official 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.
Technical Analysis
CVE-2025-71056 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 8.1.
A proof-of-concept (PoC) exploit exists for CVE-2025-71056. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.
CVSS v3.1 Vector Breakdown
Exploit & PoC Resources
All References (3)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2025-71056 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts