{"id":"CVE-2025-15083","aliases":["EUVD-2025-205381","GHSA-4rqq-pph2-52g5"],"status":"published","title":"TOZED ZLT M30s UART on-chip debug and test interface with improper access control","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.","severity":{"version":"4.0","score":1,"vector":"CVSS:4.0/AV:P/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00265,"percentile":0.18508,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-1191"],"published":"2025-12-25T17:32:06Z","modified":"2026-10-07T13:10:00Z","products":[{"vendor":"gztozed","product":"zlt_m30s_firmware"},{"vendor":"tozed","product":"zlt m30s"}],"references":[{"url":"https://vuldb.com/?id.338411","tags":["vdb-entry","Third Party Advisory","VDB Entry"]},{"url":"https://vuldb.com/?ctiid.338411","tags":["signature","permissions-required","Permissions Required","VDB Entry"]},{"url":"https://vuldb.com/?submit.707974","tags":["third-party-advisory","Third Party Advisory","VDB Entry"]},{"url":"https://hacklab.eu.org/blogs/zlt_m30s_debug_interface","tags":["exploit","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-15083"},{"url":"https://github.com/advisories/GHSA-4rqq-pph2-52g5"}],"sources":{"cve":[{"id":"CVE-2025-15083","title":"TOZED ZLT M30s UART on-chip debug and test interface with improper access control","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.","status":"published","published":"2025-12-25T17:32:06.26Z","modified":"2025-12-30T21:09:24.413Z","cvss":[{"version":"4.0","score":1,"vector":"CVSS:4.0/AV:P/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P","level":"low","assessor":"cna"},{"version":"3.1","score":2,"vector":"CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R","level":"low","assessor":"cna"},{"version":"3.0","score":2,"vector":"CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R","level":"low","assessor":"cna"},{"version":"2.0","score":1.2,"vector":"AV:L/AC:H/Au:N/C:P/I:N/A:N/E:POC/RL:ND/RC:UR","assessor":"cna"}],"cwes":["CWE-1191"],"updated_at":"2026-11-02T14:32:37.680845Z"}],"euvd":[{"id":"EUVD-2025-205381","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.","status":"published","published":"2025-12-25T17:32:06Z","modified":"2025-12-30T21:09:24Z","cvss":[{"version":"4.0","score":1,"vector":"CVSS:4.0/AV:P/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P","level":"low"}],"updated_at":"2026-11-02T19:48:59.952758Z"}],"ghsa":[{"id":"GHSA-4rqq-pph2-52g5","title":"A vulnerability was determined in TOZED ZLT M30s up to 1.47. The affected element is an unknown...","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.","status":"published","published":"2025-12-25T18:30:16Z","modified":"2025-12-25T18:30:21Z","cvss":[{"version":"4.0","score":0.3,"vector":"CVSS:4.0/AV:P/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"low"},{"version":"3.1","score":2,"vector":"CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"low"}],"cwes":["CWE-1191"],"updated_at":"2026-11-02T15:05:22.620437Z"}],"nvd":[{"id":"CVE-2025-15083","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.","status":"published","published":"2025-12-25T18:15:40.173Z","modified":"2026-10-07T13:10:00.713Z","cvss":[{"version":"4.0","score":0.3,"vector":"CVSS:4.0/AV:P/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"low","assessor":"secondary"},{"version":"3.1","score":2,"vector":"CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"low","assessor":"secondary"},{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":1.2,"vector":"AV:L/AC:H/Au:N/C:P/I:N/A:N","level":"low","assessor":"secondary"}],"cwes":["CWE-1191"],"updated_at":"2026-11-02T14:11:53.683969Z"}]}}