CVE-2026-6068

Summary

NASM contains a heap use after free vulnerability in response file (-@) processing where a dangling pointer to freed memory is stored in the global depend_file and later dereferenced, as the response-file buffer is freed before the pointer is used, allowing for data corruption or remote code execution.

Affected Software

Weaknesses

• CWE-416: Use After Free

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: yes
  • Technical Impact: partial

References

• https://github.com/netwide-assembler/nasm/issues/222
• https://sekai.team/blog/nasm-cve-disclosure/cve-2026-6068

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