CVE-2021-34123

CRITICAL

atasm 1.09 - Stack-Based Buffer Overflow in aprintf()

Title source: llm

Description

An issue was discovered on atasm, version 1.09. A stack-buffer-overflow vulnerability in function aprintf() in asm.c allows attackers to execute arbitrary code on the system via a crafted file.

References (1)

Core 1

Core References

Issue Tracking, Third Party Advisory

https://sourceforge.net/p/atasm/bugs/23/

Scores

CVSS v3 9.8

EPSS 0.0068

EPSS Percentile 47.8%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact total

Details

CWE

CWE-787

Status published

Products (1)

atasm_project/atasm 1.09

Published Jul 18, 2023

Tracked Since Feb 18, 2026