CVE-2021-32944

A use-after-free issue exists in the DGN file-reading procedure in the Drawings SDK (All versions prior to 2022.4) resulting from the lack of proper validation of user-supplied data. This can result in a memory corruption or arbitrary code execution, allowing attackers to cause a denial-of-service condition or execute code in the context of the current process.

• CWE-416
• CWE-416

• https://cert-portal.siemens.com/productcert/pdf/ssa-155599.pdfPatch, Third Party Advisory
• https://cert-portal.siemens.com/productcert/pdf/ssa-365397.pdfPatch, Third Party Advisory
• https://us-cert.cisa.gov/ics/advisories/icsa-21-159-02Third Party Advisory, US Government Resource
• https://www.zerodayinitiative.com/advisories/ZDI-21-987/Third Party Advisory, VDB Entry
• https://www.zerodayinitiative.com/advisories/ZDI-21-990/Third Party Advisory, VDB Entry
• https://cert-portal.siemens.com/productcert/pdf/ssa-155599.pdfPatch, Third Party Advisory
• https://cert-portal.siemens.com/productcert/pdf/ssa-365397.pdfPatch, Third Party Advisory
• https://us-cert.cisa.gov/ics/advisories/icsa-21-159-02Third Party Advisory, US Government Resource
• https://www.zerodayinitiative.com/advisories/ZDI-21-987/Third Party Advisory, VDB Entry
• https://www.zerodayinitiative.com/advisories/ZDI-21-990/Third Party Advisory, VDB Entry

Published

Jun 17, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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