What is CVE-2025-6521?

CVE-2025-6521 is a high-severity vulnerability in Trendmakers Sight Bulb Pro Firmware Zj Cg32-2201, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 7.6/10. Published 2025-06-27.

How severe is CVE-2025-6521?

High severity. CVSS v3 base score is 7.6 out of 10.

Vulnerability in Trendmakers Sight Bulb Pro Firmware Zj Cg32-2201

CVE-2025-6521

During the initial setup of the device the user connects to an access point broadcast by the Sight Bulb Pro. During the negotiation, AES Encryption keys are passed in cleartext. If captured, an attacker may be able to decrypt communications between the management app and the Sight Bulb Pro which may include sensitive information such as network credentials.

Vulnerability class: POODLE (CVE-2014-3566)

EPSS: 0.001 (0.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N.

Affected products

Trendmakers Sight Bulb Pro Firmware Zj_cg32-2201 — versions 0

Weakness classification (CWE)

CWE-327 — Use of a Broken or Risky Cryptographic Algorithm

References

Frequently asked questions

What is CVE-2025-6521?: CVE-2025-6521 is a high-severity vulnerability in Trendmakers Sight Bulb Pro Firmware Zj Cg32-2201, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 7.6/10. Published 2025-06-27.
How severe is CVE-2025-6521?: High severity. CVSS v3 base score is 7.6 out of 10.