CVE-2025-8843

MEDIUM

Nasm Netwide Assembler - Out-of-Bounds Write

Title source: rule
STIX 2.1

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.

References (6)

Core 6
Core References
Third Party Advisory, VDB Entry vdb-entry technical-description
https://vuldb.com/?id.319377
Permissions Required, VDB Entry signature permissions-required
https://vuldb.com/?ctiid.319377
Exploit, Third Party Advisory, VDB Entry third-party-advisory
https://vuldb.com/?submit.623185
Exploit, Third Party Advisory, VDB Entry third-party-advisory
https://vuldb.com/?submit.623186
Exploit, Issue Tracking, Vendor Advisory issue-tracking
https://bugzilla.nasm.us/show_bug.cgi?id=3392934

Scores

CVSS v3 5.3
EPSS 0.0006
EPSS Percentile 17.7%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-119 CWE-122 CWE-787
Status published
Products (1)
nasm/netwide_assembler 2.17 rc0
Published Aug 11, 2025
Tracked Since Feb 18, 2026