What’s Vulnerable › Vulnerabilities

CVE-2025-7912: TOTOLINK T6 MQTT Service recvSlaveUpgstatus buffer overflow

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-07-20 · updated 2026-06-17
• Weakness: CWE-119

Description

A vulnerability, which was classified as critical, has been found in TOTOLINK T6 4.1.5cu.748_B20211015. This issue affects the function recvSlaveUpgstatus of the component MQTT Service. The manipulation of the argument s leads to buffer overflow. The attack may be initiated 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/6.md
• https://github.com/AnduinBrian/Public/blob/main/Totolink%20T6/Vuln/6.md#poc
• https://vuldb.com/?ctiid.317027
• https://vuldb.com/?id.317027
• https://vuldb.com/?submit.618655
• https://www.totolink.net/

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