Is this vulnerability remotely exploitable?

Yes, the vulnerability is remotely exploitable but requires the attacker to have valid, non-admin credentials to the device's management interface.

What level of access does an attacker need to exploit this issue?

The attacker needs authenticated access as a lower-privileged user. From that starting point, they can leverage the improper access control to perform administrator-only actions and retrieve administrator credentials.

What is the safest general fix pattern for this vulnerability?

The safest fix is to implement strict, server-side role-based authorization checks for every sensitive endpoint and operation, ensuring that only accounts explicitly marked as administrators can modify admin settings or access credential-related data.

Severity:

HIGH RISK

(8.8)

Improper Access Control (CWE-284) in GCOM EPON 1GE Administrative Interface

CVE-2025-63409

Published:

Feb 24, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

Remote Code Execution on the Router

April 6, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Remote Code Execution on Router Firmware

April 6, 2026

Vulnerability Type

Category:

Improper Access Control

CWE:

CWE-284

Impact:

Privilege Escalation and Administrative Account Compromise

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Improper Access Control

CWE:

CWE-284

Impact:

Privilege Escalation and Administrative Account Compromise

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

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355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Improper Access Control (CWE-284) in GCOM EPON 1GE Administrative Interface

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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