CVE-2025-9935: n600r Injection — Exploit

Description

A vulnerability was determined in TOTOLINK N600R 4.3.0cu.7866_B20220506. This vulnerability affects the function sub_4159F8 of the file /web_cste/cgi-bin/cstecgi.cgi. Executing manipulation can lead to command injection. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized.

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CVSS v3.1 Score

7.3

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Weakness Type (CWE)

CWE-74 CWE-74

CWE-77 CWE-77

Affected Products

Vendor	Product	Versions
totolink	n600r_firmware	All
totolink	n600r	All

References

Exploits

https://github.com/mono7s/TOTOLINK/blob/main/N600R/TOTOLINK%20N600R%20Unauthorized_Command_Injection.md

Other References

https://vuldb.com/?ctiid.322337 https://vuldb.com/?id.322337 https://vuldb.com/?submit.643088 https://www.totolink.net/

Frequently Asked Questions

What is CVE-2025-9935? +

A vulnerability was determined in TOTOLINK N600R 4.3.0cu.7866_B20220506. This vulnerability affects the function sub_4159F8 of the file /web_cste/cgi-bin/cstecgi.cgi. Executing manipulation can lead to command injection. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized. It has a CVSS v3.1 base score of 7.3 (HIGH).

How severe is CVE-2025-9935? +

CVE-2025-9935 has a CVSS v3.1 score of 7.3 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-9935? +

CVE-2025-9935 affects products from totolink, specifically: n600r, n600r_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-9935? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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