What’s Vulnerable › Vulnerabilities

CVE-2025-7913: TOTOLINK T6 MQTT Service updateWifiInfo buffer overflow

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-07-21 · updated 2026-06-17
• Weakness: CWE-119

Description

A vulnerability, which was classified as critical, was found in TOTOLINK T6 4.1.5cu.748_B20211015. Affected is the function updateWifiInfo of the component MQTT Service. The manipulation of the argument serverIp leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

Affected products

• TOTOLINK T6: v4.1.5cu.748_b20211015

References

• https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/7.md
• https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/7.md#poc
• https://vuldb.com/?ctiid.317028
• https://vuldb.com/?id.317028
• https://vuldb.com/?submit.618656
• https://www.totolink.net/

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