TOTOLINK A950RG 4.1.2cu.5204_B20210112 system.so setNoticeCfg IpTo command injection

Summaryinfo

A vulnerability classified as critical was found in TOTOLINK A950RG 4.1.2cu.5204_B20210112. This affects the function setNoticeCfg in the library /lib/cste_modules/system.so. The manipulation of the argument IpTo results in Remote Privilege Escalation. This vulnerability is reported as CVE-2025-45798. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in TOTOLINK A950RG 4.1.2cu.5204_B20210112. It has been classified as critical. Affected is the function setNoticeCfg in the library /lib/cste_modules/system.so. The manipulation of the argument IpTo with an unknown input leads to a remote privilege escalation vulnerability. CWE is classifying the issue as CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A command execution vulnerability exists in the TOTOLINK A950RG V4.1.2cu.5204_B20210112. The vulnerability is located in the setNoticeCfg interface within the /lib/cste_modules/system.so library, specifically in the processing of the IpTo parameter.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2025-45798 since 04/22/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 05/19/2025). The MITRE ATT&CK project declares the attack technique as T1202.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-14036). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

• TOTOLINK

Name

• A950RG

Version

• 4.1.2cu.5204_B20210112

License

• commercial

Website

• Vendor: https://www.totolink.net/

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VulDB is the best source for vulnerability data and more expert information about this specific topic.

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