Linksys E5350 1.0.00.037 /wizard/apply.cgi system ping_ip/traceroute_ip os command injection

Summaryinfo

A vulnerability described as very critical has been identified in Linksys E5350 1.0.00.037. This impacts the function system of the file /wizard/apply.cgi. Executing a manipulation of the argument ping_ip/traceroute_ip can lead to os command injection. The identification of this vulnerability is CVE-2026-121932. The attack may be launched remotely. Furthermore, there is an exploit available. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability was found in Linksys E5350 1.0.00.037. It has been declared as very critical. This vulnerability affects the function system of the file /wizard/apply.cgi. The manipulation of the argument ping_ip/traceroute_ip with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-121932. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details and also a public exploit are known. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 11/04/2026). The MITRE ATT&CK project declares the attack technique as T1202.

It is possible to download the exploit at github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

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

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Router Operating System

Vendor

• Linksys

Name

• E5350

Version

• 1.0.00.037

License

• commercial

Website

• Vendor: https://www.linksys.com/

CPE 2.3info

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CPE 2.2info

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Submitinfo

Accepted

• Submit #1024275: Linksys E5350 1.0.00.037 Missing Authentication / OS Command Injection (CWE-306 / CWE-78) (by liuyingqi)

Duplicate

• Submit #XXXXXXX: Xxxxxxx Xxxxx X.x.xx.xxx Xx Xxxxxxx Xxxxxxxxx (xxx-xx) (by liuyingqi)

Once again VulDB remains the best source for vulnerability data.

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