What’s Vulnerable › Vulnerabilities

CVE-2021-43273

• Severity: low (CVSS 3.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-11-14 · updated 2026-06-17
• Weakness: CWE-125

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.

Affected products

• Open Design Alliance ODA Drawings SDK - All Versions < 2024.12: before 2022.11 — fixed in 2022.11

How to fix

Upgrade to a fixed version: Open Design Alliance ODA Drawings SDK - All Versions < 2024.12 2022.11. Check the vendor advisory for mitigations.

References

• https://www.opendesign.com/security-advisories
• https://www.zerodayinitiative.com/advisories/ZDI-21-1281/
• https://www.zerodayinitiative.com/advisories/ZDI-21-1291/
• https://www.zerodayinitiative.com/advisories/ZDI-21-1351/
• https://www.zerodayinitiative.com/advisories/ZDI-21-1357/
• https://www.opendesign.com/security-advisories
• https://www.zerodayinitiative.com/advisories/ZDI-21-1281/
• https://www.zerodayinitiative.com/advisories/ZDI-21-1291/
• https://www.zerodayinitiative.com/advisories/ZDI-21-1351/
• https://www.zerodayinitiative.com/advisories/ZDI-21-1357/

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