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CVE-2021-43273

3.3 · LOW

An Out-of-bounds Read vulnerability exists in the DGN file reading procedure in Open Design Alliance Drawings SDK before 2022.11.

Published Nov 14, 2021CWE-125EPSS 1.45%

Overview

CVE-2021-43273 is a low-severity vulnerability. It was published on November 14, 2021 and has a CVSS 3.1 base score of 3.3 (LOW).

This vulnerability has a CVSS 3.1 base score of 3.3, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

An Out-of-bounds Read vulnerability exists in the DGN file reading procedure in Open Design Alliance Drawings SDK before 2022.11. Crafted data in a DGN file and lack of verification of input data can trigger a read past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.

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

Refwww.opendesign.com/security-advisoriesRefwww.zerodayinitiative.com/advisories/ZDI-21-1281/Refwww.zerodayinitiative.com/advisories/ZDI-21-1291/Refwww.zerodayinitiative.com/advisories/ZDI-21-1351/Refwww.zerodayinitiative.com/advisories/ZDI-21-1357/Refwww.opendesign.com/security-advisoriesRefwww.zerodayinitiative.com/advisories/ZDI-21-1281/Refwww.zerodayinitiative.com/advisories/ZDI-21-1291/Refwww.zerodayinitiative.com/advisories/ZDI-21-1351/Refwww.zerodayinitiative.com/advisories/ZDI-21-1357/

How CyberStrike helps

Frequently asked questions

What is CVE-2021-43273?

CVE-2021-43273 is a low-severity vulnerability. It was published on November 14, 2021 and has a CVSS 3.1 base score of 3.3 (LOW).

How severe is CVE-2021-43273?

This vulnerability has a CVSS 3.1 base score of 3.3, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-43273?

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-2021-43273?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-43273 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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