Heap Use After Free Vulnerability in Netwide Assembler by Netwide Assembler
CVE-2026-6068

6.5MEDIUM

Key Information:

Vendor

Nasm

Status
Nasm
Vendor
CVE Published:
10 April 2026

What is CVE-2026-6068?

The Netwide Assembler (NASM) is vulnerable due to a heap use after free issue arising during the processing of response files. This occurs when a pointer to deallocated memory is improperly utilized, as the response-file buffer is freed before the pointer is accessed. This flaw may result in data corruption or unpredictable application behavior, posing a significant risk to users relying on this assembler.

Affected Version(s)

NASM nasm-3.02rc5

References

https://github.com/netwide-assembler/nasm/issues/222

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.