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CVE-2023-39666

9.8 · CRITICAL

D-Link DIR-842 fw_revA_1-02_eu_multi_20151008 was discovered to contain multiple buffer overflows in the fgets function via the acStack_120 and acStack_220 parameters.

Published Aug 18, 2023CWE-120EPSS 1.40%

Overview

CVE-2023-39666 is a critical-severity vulnerability. It was published on August 18, 2023 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

D-Link DIR-842 fw_revA_1-02_eu_multi_20151008 was discovered to contain multiple buffer overflows in the fgets function via the acStack_120 and acStack_220 parameters.

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/Davidteeri/Bug-Report/blob/main/D-Link/DIR-842%20buffer%20overflow.mdRefsupport.dlink.com/Refwww.dlink.com/en/security-bulletin/GitHubgithub.com/Davidteeri/Bug-Report/blob/main/D-Link/DIR-842%20buffer%20overflow.mdRefsupport.dlink.com/Refwww.dlink.com/en/security-bulletin/

How CyberStrike helps

Frequently asked questions

What is CVE-2023-39666?

CVE-2023-39666 is a critical-severity vulnerability. It was published on August 18, 2023 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2023-39666?

This vulnerability has a CVSS 3.1 base score of 9.8, 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-2023-39666?

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-2023-39666?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-39666 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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