CVE-2021-33450: Nasm Netwide Assembler

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

An issue was discovered in NASM version 2.16rc0. There are memory leaks in nasm_calloc() in nasmlib/alloc.c.

Affected products

• Nasm Netwide Assembler: version 2.16 only

Published 2022-07-26. Last modified 2026-06-17.