CVE-2025-8843

NASM Netwide Assember outmacho.c macho_no_dead_strip heap-based overflow

HIGH
7.8
CVSS Score
Published: August 11, 2025 at 11:02 AM UTC
Updated: June 17, 2026 at 10:07 AM UTC
1 product affected across 1 vendorNetwide Assembler

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Severity
HIGH7.8
Exploit prediction
EPSS 0.3%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (6)

Issue TrackingExploitVendor Advisory
https://bugzilla.nasm.us/show_bug.cgi?id=3392934
SignaturePermissions RequiredVDB Entry
https://vuldb.com/?ctiid.319377
VDB EntryTechnical DescriptionThird Party Advisory
https://vuldb.com/?id.319377
Third Party AdvisoryExploitVDB Entry
https://vuldb.com/?submit.623185
Third Party AdvisoryExploitVDB Entry
https://vuldb.com/?submit.623186

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-119CWE-122CWE-787

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