systeminformation is a System and OS information library for node.js. In affected versions SSIDs are not sanitized when before they are passed as a parameter to cmd.exe in the `getWindowsIEEE8021x` function. This means that malicious content in the SSID can be executed as OS commands. This vulnerability may enable an attacker, depending on how the package is used, to perform remote code execution or local privilege escalation. This issue has been addressed in version 5.23.7 and all users are advised to upgrade. There are no known workarounds for this vulnerability.

Affected: npm: systeminformation

### Summary The SSID is not sanitized when before it is passed as a parameter to cmd.exe in the `getWindowsIEEE8021x` function. This means that malicious content in the SSID can be executed as OS commands.

### Details I have exploited this vulnerability in a Windows service using version 5.22.11 of the module, to escalate privileges (in an environment where I am authorized to do so). However, as far as I can see from the code, it is still present in master branch at time of writing, on line [403/404 of network.js](https://github.com/sebhildebrandt/systeminformation/blob/3a92931c7d46605ffddc1aacb97a9727273b2888/lib/network.js#L403).

The SSID is obtained from `netsh wlan show interface ...` in `getWindowsWirelessIfaceSSID`, and then passed to `cmd.exe /d /s /c "netsh wlan show profiles ...` in `getWindowsIEEE8021x`, without sanitization.

### PoC First, the command injection payload should be included in the connected Wi-Fi SSID. For example create hotspot on mobile phone or other laptop, set SSID to payload, connect to it with victim Windows system. Two example SSID's to demonstrate exploitation are below.

Demonstration to run ping command indefinitely: ``` a" | ping /t 127.0.0.1 & ```

Run executable with privileges of the user in which vulnerable function is executed. Chosen executable should should be placed in (assuming system drive is C): `C:\a\a.exe`. ``` a" | %SystemDrive%\a\a.exe & ```

Then, the vulnerable function can be executed on the victim system, for exampl…

golang.org/x/net/html: Non-linear parsing of case-insensitive content in golang.org/x/net/html path-to-regexp: path-to-regexp Unpatched `path-to-regexp` ReDoS in 0.1.x nanoid: nanoid mishandles non-integer values jinja2: Jinja has a sandbox breakout through malicious filenames jinja2: Jinja has a sandbox breakout through indirect reference to format method systeminformation: Command injection vulnerability in getWindowsIEEE8021x (SSID) function in systeminformation

Affected: Ubuntu:25.10: jupyterlab, Ubuntu:26.04:LTS: jupyterlab

systeminformation is a System and OS information library for node.js. In affected versions SSIDs are not sanitized when before they are passed as a parameter to cmd.exe in the `getWindowsIEEE8021x` function. This means that malicious content in the SSID can be executed as OS commands. This vulnerability may enable an attacker, depending on how the package is used, to perform remote code execution or local privilege escalation. This issue has been addressed in version 5.23.7 and all users are advised to upgrade. There are no known workarounds for this vulnerability.