What’s Vulnerable › Vulnerabilities

CVE-2025-15083: TOZED ZLT M30s UART on-chip debug and test interface with improper access control

• Severity: medium (CVSS 4.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-12-25 · updated 2026-10-07
• Weakness: CWE-1191

Description

A vulnerability was determined in TOZED ZLT M30s up to 1.47. The affected element is an unknown function of the component UART Interface. Executing manipulation can lead to on-chip debug and test interface with improper access control. The physical device can be targeted for the attack. Attacks of this nature are highly complex. The exploitability is described as difficult. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

• TOZED ZLT M30s: through 1.47

References

• https://hacklab.eu.org/blogs/zlt_m30s_debug_interface
• https://vuldb.com/?ctiid.338411
• https://vuldb.com/?id.338411
• https://vuldb.com/?submit.707974

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