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CVE-2026-6068

CVE-2026-6068

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.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Nasm
Products
Nasm Netwide Assembler
CVE-2026-6067

CVE-2026-6067

A heap buffer overflow vulnerability exists in the Netwide Assembler (NASM) due to a lack of bounds checking in the obj_directive() function. This vulnerability can be exploited by a user assembling a malicious .asm file, potentially leading to heap memory corruption, denial of service (crash), and arbitrary code execution.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Nasm
Products
Nasm Netwide Assembler
CVE-2026-6069

CVE-2026-6069

NASM’s disasm() function contains a stack based buffer overflow when formatting disassembly output, allowing an attacker triggered out-of-bounds write when `slen` exceeds the buffer capacity.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Nasm
Products
Nasm Netwide Assembler