What is the CVSS score of CVE-2023-43492?

CVE-2023-43492 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.9%.

Is there a public PoC exploit available for CVE-2023-43492?

Yes, a public proof-of-concept exploit is available for CVE-2023-43492. Prioritise patching immediately. EPSS: 0.9%.

Cmt Fhd Firmware CVE-2023-43492

CRITICAL

Stack-based Buffer Overflow (CWE-121)

2023-10-19 ics-cert@hq.dhs.gov

Stack Overflow Buffer Overflow Cmt Fhd Firmware Cmt Hdm Firmware Cmt3071 Firmware Cmt3072 Firmware Cmt3090 Firmware Cmt3103 Firmware Cmt3151 Firmware

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Oct 19, 2023 - 20:15 nvd

CRITICAL 9.8

DescriptionNVD

AnalysisAI

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. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-121. 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. Affected products include: Weintek Cmt-Fhd Firmware, Weintek Cmt-Hdm Firmware, Weintek Cmt3071 Firmware, Weintek Cmt3072 Firmware, Weintek Cmt3090 Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.