Buffer overflow in Weintek Cmt3071
CVE-2023-43492
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.
Vulnerability class: Buffer Overflow
EPSS: 0.009 (54.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Weintek Cmt3071 — versions 0
- Weintek Cmt3071_firmware
- Weintek Cmt3072 — versions 0
- Weintek Cmt3072_firmware
- Weintek Cmt3090 — versions 0
- Weintek Cmt3090_firmware
- Weintek Cmt3103 — versions 0
- Weintek Cmt3103_firmware
- Weintek Cmt3151 — versions 0
- Weintek Cmt3151_firmware
Weakness classification (CWE)
Public proof-of-concept exploits
References
- ics-cert@hq.dhs.gov (US Government Resource, Third Party Advisory)
- ics-cert@hq.dhs.gov (Exploit, Vendor Advisory)
Frequently asked questions
- What is CVE-2023-43492?
- CVE-2023-43492 is a critical-severity vulnerability in Weintek Cmt3071, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2023-10-19.
- How severe is CVE-2023-43492?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2023-43492 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.