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CVE-2025-8843

NASM Netwide Assember outmacho.c macho_no_dead_strip heap-based overflow

Published: Aug 11, 2025Updated: Apr 29, 2026 Sources: CVE List NVDCWE-119
NVD MITRE
5.3CVSSMEDIUM
EPSS Score
0.2%
Top 86.1%
CISA KEV
Not in KEV
Exploits
4 Known
Remediation
Patch Available

Description

A vulnerability was found in NASM Netwide Assember 2.17rc0. This affects the function macho_no_dead_strip of the file outmacho.c. The manipulation leads to heap-based buffer overflow. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:LI:LA:L
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:LAvailability
Low
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Weaknesses

CWE-119CWE-122CWE-787

Affected Products

Netwide AssemberNASM
Library
DevTools & CI / build-test-tools
netwide assemblernasm
On-premDev Tool
DevTools & CI / build-test-tools
nasmoss-projectDevTools & CIaka nasm

Attack Graph

Products CVE Techniques Tactics

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Exploitability

4 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://vuldb.com/?id.319377
vuldb.com
https://vuldb.com/?ctiid.319377
vuldb.com
https://vuldb.com/?submit.623185
vuldb.com
and 3 more references View all →

Timeline

Published
Aug 11, 2025
Last Updated
Apr 29, 2026

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