CVE-2020-21528: Nasm Netwide Assembler

Medium severity, CVSS 5.5. EPSS: 0.5% chance of exploitation in the next 30 days.

A Segmentation Fault issue discovered in in ieee_segment function in outieee.c in nasm 2.14.03 and 2.15 allows remote attackers to cause a denial of service via crafted assembly file.

Affected products

• Nasm Netwide Assembler: version 2.14.03 only; version 2.15 only

Published 2023-08-22. Last modified 2026-06-17.