CVE-2020-18974: Nasm Netwide Assembler

Low severity, CVSS 3.3. EPSS: 0.8% chance of exploitation in the next 30 days.

Buffer Overflow in Netwide Assembler (NASM) v2.15.xx allows attackers to cause a denial of service via 'crc64i' in the component 'nasmlib/crc64'. This issue is different than CVE-2019-7147.

Affected products

• Nasm Netwide Assembler: from 2.15, up to and including 2.15.05

Published 2021-08-25. Last modified 2026-06-17.