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CVE-2023-3943

10.0 · CRITICAL

Stack-based Buffer Overflow vulnerability in ZkTeco-based OEM devices allows, in some cases, the execution of arbitrary code.

Published May 21, 2024CWE-121EPSS 0.95%

Overview

CVE-2023-3943 is a critical-severity vulnerability. It was published on May 21, 2024 and has a CVSS 3.1 base score of 10.0 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 10.0, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Stack-based Buffer Overflow vulnerability in ZkTeco-based OEM devices allows, in some cases, the execution of arbitrary code. Due to the lack of protection mechanisms such as stack canaries and PIE, it is possible to successfully execute code even under restrictive conditions.

This issue affects

ZkTeco-based OEM devices (ZkTeco ProFace X, Smartec ST-FR043, Smartec ST-FR041ME and possibly others)

with firmware

ZAM170-NF-1.8.25-7354-Ver1.0.0 and possibly others.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/klsecservices/Advisories/blob/master/K-ZkTeco-2023-006.mdGitHubgithub.com/klsecservices/Advisories/blob/master/K-ZkTeco-2023-006.md

How CyberStrike helps

Frequently asked questions

What is CVE-2023-3943?

CVE-2023-3943 is a critical-severity vulnerability. It was published on May 21, 2024 and has a CVSS 3.1 base score of 10.0 (CRITICAL).

How severe is CVE-2023-3943?

This vulnerability has a CVSS 3.1 base score of 10.0, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-3943?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-3943?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-3943 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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