CVE-2019-7147: Nasm Netwide Assembler

Medium severity, CVSS 5.5. EPSS: 0.7% chance of exploitation in the next 30 days.

A buffer over-read exists in the function crc64ib in crc64.c in nasmlib in Netwide Assembler (NASM) 2.14rc16. A crafted asm input can cause segmentation faults, leading to denial-of-service.

Affected products

• Nasm Netwide Assembler: version 2.14 only

Published 2019-01-29. Last modified 2026-06-17.