Is this vulnerability remotely exploitable over the internet?

It can be, but only if the router's management interface is exposed beyond the local network (for example, if remote administration is enabled or port forwarding is misconfigured). In many default setups, the attack surface is limited to the local network unless the interface is explicitly exposed.

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

The attacker must be able to reach the web management interface over the network and exploit the condition where at least one valid user session is already active. They do not necessarily need to know the credentials themselves if the implementation accepts their backup request based solely on the existence of another user's session.

What is the safest general fix pattern for this type of issue?

The safest pattern is to enforce strong, per-request authentication and authorization for all backup and export operations, restrict these features to high-privilege roles, and ensure that highly sensitive system files are never included in downloadable archives.

Severity:

HIGH RISK

(8.8)

Inadequate Access Control on Configuration Backup (CWE-200) in KAYSUS KS-WR3600 Routers

CVE-2025-68719

Published:

Jan 8, 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:

Information Exposure / Insecure Configuration Management

CWE:

CWE-200;CWE-552

Impact:

Exposure of Credentials and Full Device Compromise

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Information Exposure / Insecure Configuration Management

CWE:

CWE-200;CWE-552

Impact:

Exposure of Credentials and Full Device 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

Inadequate Access Control on Configuration Backup (CWE-200) in KAYSUS KS-WR3600 Routers

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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