PatchTheCVECVE-2025-63409: Privilege escalation and improper access control in GCOM EPON 1GE C00R371V00B01 allows remote authenticated us
CVE-2025-63409 is a high-severity flaw (CVSS 8.8) affecting gcom epon 1ge firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Privilege escalation and improper access control in GCOM EPON 1GE C00R371V00B01 allows remote authenticated users to modify administrator only settings and extract administrator credentials.
Why this priority
- High severity
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 8.8 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.3% (top 75%) |
| CISA exploited list | No |
| Weakness | CWE-284 |
| Published | 2026-02-24 |
| Last modified | 2026-07-05 |
Last updated 2026-07-05 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2025-63409?
gcom epon 1ge firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2025-63409 being exploited?
CVE-2025-63409 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2025-63409 affect?
CVE-2025-63409 affects gcom epon 1ge firmware. Severity is high (CVSS 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.
How urgent is CVE-2025-63409?
Priority 37/100. High severity