Sensitive-data disclosure via cleartext onboarding keys
Published Jun 27, 2025 · Updated Jun 27, 2025
Cleartext key exposure in Trend Makers Sight Bulb Pro firmware through 8.57.83 allows attackers to decrypt captured setup traffic. During initial Wi-Fi onboarding, the device sends AES session keys in cleartext while negotiating with the management app. The attacker must be within range of the temporary access point and capture that exchange; recovered keys expose later app-to-device communications, including network credentials.
Summary
What happened
Cleartext key exposure in Trend Makers Sight Bulb Pro firmware through 8.57.83 allows attackers to decrypt captured setup traffic. During initial Wi-Fi onboarding, the device sends AES session keys in cleartext while negotiating with the management app. The attacker must be within range of the temporary access point and capture that exchange; recovered keys expose later app-to-device communications, including network credentials.
The record
- CVE
- CVE-2025-6521
- Published
- Jun 27, 2025
- Updated
- Jun 27, 2025
- Vendor
- Trend Makers
- Product
- Sight Bulb Pro Firmware ZJ_CG32-2201
- Classifications
- CWE-327, CAPEC-97, T1040
- Attack vector
- adjacent
- Privileges
- admin
Timeline
How it unfolded
- Jun 27, 2025CVE publishedPublication date reported by the CVE source.
- Jun 27, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=8.57.83
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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