What’s Vulnerable › Vulnerabilities

CVE-2023-40042

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-08-08 · updated 2026-06-17
• Weakness: CWE-787

Description

TOTOLINK T10_v2 5.9c.5061_B20200511 has a stack-based buffer overflow in setStaticDhcpConfig in /lib/cste_modules/lan.so. Attackers can send crafted data in an MQTT packet, via the comment parameter, to control the return address and execute code.

Affected products

• TOTOLINK T10 V2 Firmware: 5.9c.5061_b20200511

References

• http://www.totolink.cn
• https://github.com/Korey0sh1/IoT_vuln/blob/main/TOTOLINK/T10_V2/setStaticDhcpConfig.md
• https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/172/ids/36.html
• http://www.totolink.cn
• https://github.com/Korey0sh1/IoT_vuln/blob/main/TOTOLINK/T10_V2/setStaticDhcpConfig.md
• https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/172/ids/36.html

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