Cyber Resilience

CVE-2023-43492

CriticalPublic PoC

Published: 19 October 2023

Published
19 October 2023
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0008 23.6th percentile
Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-43492 is a critical-severity Stack-based Buffer Overflow (CWE-121) vulnerability in Weintek Cmt-Fhd Firmware. Its CVSS base score is 9.8 (Critical).

Operationally, ranked at the 23.6th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

In Weintek's cMT3000 HMI Web CGI device, the cgi-bin codesys.cgi contains a stack-based buffer overflow, which could allow an anonymous attacker to hijack control flow and bypass login authentication.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

weintek
cmt-fhd firmware
≤ 20210212
weintek
cmt-hdm firmware
≤ 20210206
weintek
cmt3071 firmware
≤ 20210220
weintek
cmt3072 firmware
≤ 20210220
weintek
cmt3090 firmware
≤ 20210220
weintek
cmt3103 firmware
≤ 20210220
weintek
cmt3151 firmware
≤ 20210220

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-787

Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.

References