CVE-2021-43276

Name: CVE-2021-43276
Creator: NVD / NIST
Published: 2021-11-14T21:15:08.043+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.81%

Last modified Jun 17, 2026

CVE-2021-43276 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. An Out-of-bounds Read vulnerability exists in Open Design Alliance ODA Viewer before 2022.8. Crafted data in a DWF file can trigger a read past the end of an allocated buffer. EPSS estimates a 0.81% chance of exploitation in the next 30 days.

Description

An Out-of-bounds Read vulnerability exists in Open Design Alliance ODA Viewer before 2022.8. Crafted data in a DWF file can trigger a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

0.81%

52.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions
Opendesign	Oda Viewer	< 2022.8

References

https://www.opendesign.com/security-advisoriesVendor Advisory
https://www.opendesign.com/security-advisoriesVendor Advisory

Timeline

Published: Nov 14, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-43276?

How severe is CVE-2021-43276?

CVE-2021-43276 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.81% probability of exploitation in the next 30 days.

How do I fix CVE-2021-43276?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-43276?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST