CVE-2025-63409

Status: ModifiedHigh (8.8)—

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

Version: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base score: 8.8

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.29%
Percentile among all scored CVEs: 19
Score date: 10/4/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

ExploitationT1210 Exploitation of Remote Serviceslateral movement85 %
Primary impactT1068 Exploitation for Privilege Escalationprivilege escalation90 %
Secondary impactT1078 Valid Accountsstealth · persistence · privilege escalation · initial access85 %
Secondary impactT1552.007 Container APIcredential access80 %

CVE remota que requiere autenticación (PR:L) afecta a dispositivo EPON. Permite escalada de privilegios (C:H/I:H/A:H) mediante modificación de configuración de admin y extracción de credenciales (CWE-284: improper access control).

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Privileged Account Management User Account Management Threat Intelligence Program Network Segmentation Application Isolation and Sandboxing Exploit Protection

Affected technologies (1)

Gcomtw — Gcom Epon 1GE Firmware

CWEs

CWE-284

References

https://github.com/theShinigami/CVE-Disclosures/tree/main/CVE-2025-63409

Raw JSON (NVD)

Show

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