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CVE-2022-37134

9.8 · CRITICAL

D-link DIR-816 A2_v1.10CNB04.img is vulnerable to Buffer Overflow via /goform/form2Wan.cgi.

Published Aug 22, 2022CWE-1284EPSS 21.70%

Overview

CVE-2022-37134 is a critical-severity vulnerability. It was published on August 22, 2022 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-816 A2_v1.10CNB04.img is vulnerable to Buffer Overflow via /goform/form2Wan.cgi. When wantype is 3, l2tp_usrname will be decrypted by base64, and the result will be stored in v94, which does not check the size of l2tp_usrname, resulting in stack overflow.

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/z1r00/IOT_Vul/blob/main/dlink/Dir816/form2Wan_cgi/readme.mdRefwww.dlink.com/en/security-bulletin/GitHubgithub.com/z1r00/IOT_Vul/blob/main/dlink/Dir816/form2Wan_cgi/readme.mdRefwww.dlink.com/en/security-bulletin/

How CyberStrike helps

Frequently asked questions

What is CVE-2022-37134?

CVE-2022-37134 is a critical-severity vulnerability. It was published on August 22, 2022 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2022-37134?

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-2022-37134?

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-2022-37134?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-37134 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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