Cleartext AES Key Transmission in Sight Bulb Pro by Smart Home Vendor
CVE-2025-6521

6.8MEDIUM

Key Information:

Vendor

Trendmakers

Status
Sight Bulb Pro Firmware Zj Cg32-2201
Vendor
CVE Published:
27 June 2025

What is CVE-2025-6521?

During the initial device setup, the Sight Bulb Pro broadcasts an access point that connects users for configuration. In this process, AES encryption keys are transmitted in cleartext, leaving them susceptible to interception. If these keys are captured by an attacker, they could decrypt communications between the Sight Bulb Pro management app and the device, potentially exposing sensitive information, including network credentials. This vulnerability highlights the importance of securing encryption key exchanges to safeguard user data and maintain overall network integrity.

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Affected Version(s)

Sight Bulb Pro Firmware ZJ_CG32-2201 0 <= 8.57.83

References

https://www.cisa.gov/news-events/ics-advisories/icsa-25-1...
https://www.trendmakerscares.com/Customer-Service-Hours

CVSS V4

Score:
6.8
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Fahim Balouch reported these vulnerabilities to CISA.
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