CVE-2025-8844: Nasm Netwide Assembler

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

A vulnerability was determined in NASM Netwide Assember 2.17rc0. This vulnerability affects the function parse_smacro_template of the file preproc.c. The manipulation leads to null pointer dereference. Attacking locally is a requirement. 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.