CVE-2025-8844: NASM Netwide Assember preproc.c parse_smacro_template null pointer dereference

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-08-11 · updated 2026-06-17
Weakness: CWE-404

Description

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 Assember: 2.17-rc0

References

https://bugzilla.nasm.us/show_bug.cgi?id=3392936
https://drive.google.com/file/d/10TSdMErFTBtLFIwfh_fia635cmtmFuei/view?usp=drive_link
https://vuldb.com/?ctiid.319378
https://vuldb.com/?id.319378
https://vuldb.com/?submit.623187
https://vuldb.com/?submit.623196
https://vuldb.com/?submit.623198
https://bugzilla.nasm.us/show_bug.cgi?id=3392936
https://vuldb.com/?submit.623198

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