What’s Vulnerable › Vulnerabilities

CVE-2019-15745

• Severity: high (CVSS 8.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-08-29 · updated 2026-06-17
• Weakness: CWE-798

Description

The Eques elf smart plug and the mobile app use a hardcoded AES 256 bit key to encrypt the commands and responses between the device and the app. The communication happens over UDP port 27431. An attacker on the local network can use the same key to encrypt and send commands to discover all smart plugs in a network, take over control of a device, and perform actions such as turning it on and off.

Affected products

• Equeshome Elf Smart Plug Firmware: all versions

References

• https://github.com/iamckn/eques
• https://www.ckn.io/blog/2019/08/27/exploiting-the-eques-elf-smart-plug-part-four/
• https://www.ckn.io/blog/2019/08/27/exploiting-the-eques-elf-smart-plug-part-one/
• https://www.ckn.io/blog/2019/08/27/exploiting-the-eques-elf-smart-plug-part-three/
• https://www.ckn.io/blog/2019/08/27/exploiting-the-eques-elf-smart-plug-part-two/
• https://github.com/iamckn/eques
• https://www.ckn.io/blog/2019/08/27/exploiting-the-eques-elf-smart-plug-part-four/
• https://www.ckn.io/blog/2019/08/27/exploiting-the-eques-elf-smart-plug-part-one/
• https://www.ckn.io/blog/2019/08/27/exploiting-the-eques-elf-smart-plug-part-three/
• https://www.ckn.io/blog/2019/08/27/exploiting-the-eques-elf-smart-plug-part-two/

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