VULNERABILITY INTELLIGENCE

CVE-2020-21686

CVSS score5.5 MEDIUM

EPSS probability0.44%

CISA KEVNot currently listed

Published2023-08-22

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Description

A stack-use-after-scope issue discovered in expand_mmac_params function in preproc.c in nasm before 2.15.04 allows remote attackers to cause a denial of service via crafted asm file.

Weakness classification

nvd@nist.gov: NVD-CWE-Other
134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-562

Primary references

cve@mitre.org — Exploit, Issue Tracking, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Issue Tracking, Vendor Advisory