CVE-2020-21687

MEDIUM

NASM 2.15rc0 - Buffer Overflow in stdscan.c scan function

Title source: llm

Description

Buffer Overflow vulnerability in scan function in stdscan.c in nasm 2.15rc0 allows remote attackers to cause a denial of service via crafted asm file.

References (1)

Core 1

Core References

Exploit, Issue Tracking, Vendor Advisory

https://bugzilla.nasm.us/show_bug.cgi?id=3392645

Scores

CVSS v3 5.5

EPSS 0.0038

EPSS Percentile 30.2%

Attack Vector LOCAL

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

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact partial

Details

CWE

CWE-787

Status published

Products (1)

nasm/netwide_assembler 2.15 rc0

Published Aug 22, 2023

Tracked Since Feb 18, 2026