What’s Vulnerable › Vulnerabilities

CVE-2025-8938: TOTOLINK N350R Telnet Service formSysTel backdoor

• Severity: medium (CVSS 6.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-08-14 · updated 2026-06-17
• Weakness: CWE-912

Description

A vulnerability was found in TOTOLINK N350R 1.2.3-B20130826. This issue affects the function formSysTel of the file /boafrm/formSysTel of the component Telnet Service. The manipulation of the argument TelEnabled leads to backdoor. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

Affected products

• TOTOLINK N350R: 1.2.3-b20130826

References

• https://github.com/rew1X/CVE/blob/main/TOTOLINK/formSysTel/formSysTel.md
• https://github.com/rew1X/CVE/blob/main/TOTOLINK/formSysTel/formSysTel.md#poc
• https://vuldb.com/?ctiid.319901
• https://vuldb.com/?id.319901
• https://vuldb.com/?submit.631837
• https://www.totolink.net/

Get alerted when CVE-2025-8938 or the next vulnerability affects your stack