Wi-Fi credential disclosure via plaintext UART logs
Published Dec 25, 2025 · Updated Dec 25, 2025
Information disclosure in the UART console of TOZED ZLT M30S 1.0 through 1.47 allows physically proximate attackers to read Wi-Fi credentials. The debugging console logs the current credential during boot and the factory-set default credential during a factory reset without masking either value. Exploitation requires physical access and a connection to the device's UART interface; the reported consequence is credential disclosure rather than configuration changes or service interruption.
Summary
What happened
Information disclosure in the UART console of TOZED ZLT M30S 1.0 through 1.47 allows physically proximate attackers to read Wi-Fi credentials. The debugging console logs the current credential during boot and the factory-set default credential during a factory reset without masking either value. Exploitation requires physical access and a connection to the device's UART interface; the reported consequence is credential disclosure rather than configuration changes or service interruption.
The record
- CVE
- CVE-2025-15083
- Published
- Dec 25, 2025
- Updated
- Dec 25, 2025
- Vendor
- Tozed Kangwei Tech Co., Ltd.
- Product
- ZLT M30S
- Classifications
- CWE-1191, T1552
- Attack vector
- physical
- Privileges
- unauthenticated
Timeline
How it unfolded
- Dec 25, 2025CVE publishedPublication date reported by the CVE source.
- Dec 25, 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=1.0
- Affected versionversion=1.1
- Affected versionversion=1.10
- Affected versionversion=1.11
- Affected versionversion=1.12
- Affected versionversion=1.13
- Affected versionversion=1.14
- Affected versionversion=1.15
- Affected versionversion=1.16
- Affected versionversion=1.17
- Affected versionversion=1.18
- Affected versionversion=1.19
- Affected versionversion=1.2
- Affected versionversion=1.20
- Affected versionversion=1.21
- Affected versionversion=1.22
- Affected versionversion=1.23
- Affected versionversion=1.24
- Affected versionversion=1.25
- Affected versionversion=1.26
- Affected versionversion=1.27
- Affected versionversion=1.28
- Affected versionversion=1.29
- Affected versionversion=1.3
- Affected versionversion=1.30
- Affected versionversion=1.31
- Affected versionversion=1.32
- Affected versionversion=1.33
- Affected versionversion=1.34
- Affected versionversion=1.35
- Affected versionversion=1.36
- Affected versionversion=1.37
- Affected versionversion=1.38
- Affected versionversion=1.39
- Affected versionversion=1.4
- Affected versionversion=1.40
- Affected versionversion=1.41
- Affected versionversion=1.42
- Affected versionversion=1.43
- Affected versionversion=1.44
- Affected versionversion=1.45
- Affected versionversion=1.46
- Affected versionversion=1.47
- Affected versionversion=1.5
- Affected versionversion=1.6
- Affected versionversion=1.7
- Affected versionversion=1.8
- Affected versionversion=1.9
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
- ZLT M30S debug-interface credential disclosureproof of concept · demonstrated
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Technologies
Your stack
See the directory against your own environment.
Your stack
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