CVE-2025-8843: Nasm Netwide Assembler

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

A vulnerability was found in NASM Netwide Assember 2.17rc0. This affects the function macho_no_dead_strip of the file outmacho.c. The manipulation leads to heap-based buffer overflow. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used.

Affected products

• Nasm Netwide Assembler: version 2.17 only

Published 2025-08-11. Last modified 2026-06-17.