What’s Vulnerable › Vulnerabilities

CVE-2021-43280

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% 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-787

Description

A stack-based buffer overflow vulnerability exists in the DWF file reading procedure in Open Design Alliance Drawings SDK before 2022.8. The issue results from the lack of proper validation of the length of user-supplied data before copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.

Affected products

• Opendesign Drawings Software Development Kit: before 2022.8 — fixed in 2022.8

How to fix

Upgrade to a fixed version: Opendesign Drawings Software Development Kit 2022.8. Check the vendor advisory for mitigations.

References

• https://www.opendesign.com/security-advisories
• https://www.zerodayinitiative.com/advisories/ZDI-21-1340/
• https://www.zerodayinitiative.com/advisories/ZDI-21-1341/
• https://www.zerodayinitiative.com/advisories/ZDI-21-1342/
• https://www.zerodayinitiative.com/advisories/ZDI-21-1343/
• https://www.zerodayinitiative.com/advisories/ZDI-21-1345/
• https://www.zerodayinitiative.com/advisories/ZDI-21-1355/
• https://www.zerodayinitiative.com/advisories/ZDI-21-1356/
• https://www.opendesign.com/security-advisories
• https://www.zerodayinitiative.com/advisories/ZDI-21-1340/
• https://www.zerodayinitiative.com/advisories/ZDI-21-1341/
• https://www.zerodayinitiative.com/advisories/ZDI-21-1342/

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