What is CVE-2021-31784?

CVE-2021-31784 is a high-severity vulnerability in Opendesign Drawings Sdk, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2021-04-26.

How severe is CVE-2021-31784?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Opendesign Drawings Sdk

CVE-2021-31784

An out-of-bounds write vulnerability exists in the file-reading procedure in Open Design Alliance Drawings SDK before 2021.6 on all supported by ODA platforms in static configuration. This can allow attackers to cause a crash, potentially enabling a denial of service attack (Crash, Exit, or Restart) or possible code execution.

Vulnerability class: Buffer Overflow

Published 2021-04-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.009 (56.6th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

www.opendesign.com/security-advisories (Vendor Advisory)
cert-portal.siemens.com/productcert/pdf/ssa-155599.pdf (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2021-31784?: CVE-2021-31784 is a high-severity vulnerability in Opendesign Drawings Sdk, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2021-04-26.
How severe is CVE-2021-31784?: High severity. CVSS v3 base score is 7.8 out of 10.