Browse CVEs

CRITICAL 9.6 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 d… Netwide Assembler No fix yet Fix from $2,3002026-04-10 HIGH 7.5 CVE-2026-6069 NASM’s disasm() function contains a stack based buffer overflow when formatting disassembly output, allowing an attacker triggered out-of-bounds writ… Netwide Assembler No fix yet Fix from $1,9502026-04-10 MEDIUM 5.5 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 vu… Netwide Assembler No fix yet Fix from $1,6002026-04-10 HIGH 7.8 CVE-2025-8846 A vulnerability has been found in NASM Netwide Assember 2.17rc0. Affected is the function parse_line of the file parser.c. The manipulation leads to … Netwide Assembler No fix yet Fix from $1,9502025-08-11 HIGH 7.8 CVE-2025-8845 A vulnerability was identified in NASM Netwide Assember 2.17rc0. This issue affects the function assemble_file of the file nasm.c. The manipulation l… Netwide Assembler No fix yet Fix from $1,9502025-08-11 MEDIUM 5.5 CVE-2025-8844 A vulnerability was determined in NASM Netwide Assember 2.17rc0. This vulnerability affects the function parse_smacro_template of the file preproc.c.… Netwide Assembler No fix yet Fix from $1,6002025-08-11 HIGH 7.8 CVE-2025-8843 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 le… Netwide Assembler No fix yet Fix from $1,9502025-08-11 HIGH 7.8 CVE-2025-8842 A vulnerability has been found in NASM Netwide Assember 2.17rc0. Affected by this issue is the function do_directive of the file preproc.c. The manip… Netwide Assembler No fix yet Fix from $1,9502025-08-11 MEDIUM 5.5 CVE-2023-38665 Null pointer dereference in ieee_write_file in nasm 2.16rc0 allows attackers to cause a denial of service (crash). Netwide Assembler No fix yet Fix from $1,6002023-08-22 MEDIUM 5.5 CVE-2023-38667 Stack-based buffer over-read in function disasm in nasm 2.16 allows attackers to cause a denial of service. Netwide Assembler No fix yet Fix from $1,6002023-08-22 MEDIUM 5.5 CVE-2023-38668 Stack-based buffer over-read in disasm in nasm 2.16 allows attackers to cause a denial of service (crash). Netwide Assembler No fix yet Fix from $1,6002023-08-22 MEDIUM 5.5 CVE-2020-21687 Buffer Overflow vulnerability in scan function in stdscan.c in nasm 2.15rc0 allows remote attackers to cause a denial of service via crafted asm file. Netwide Assembler No fix yet Fix from $1,6002023-08-22 MEDIUM 5.5 CVE-2020-21685 Buffer Overflow vulnerability in hash_findi function in hashtbl.c in nasm 2.15rc0 allows remote attackers to cause a denial of service via crafted as… Netwide Assembler No fix yet Fix from $1,6002023-08-22 MEDIUM 5.5 CVE-2020-21528 A Segmentation Fault issue discovered in in ieee_segment function in outieee.c in nasm 2.14.03 and 2.15 allows remote attackers to cause a denial of … Netwide Assembler No fix yet Fix from $1,6002023-08-22 MEDIUM 5.5 CVE-2020-18780 A Use After Free vulnerability in function new_Token in asm/preproc.c in nasm 2.14.02 allows attackers to cause a denial of service via crafted nasm … Netwide Assembler No fix yet Fix from $1,6002023-08-22 HIGH 7.8 CVE-2023-31722 There exists a heap buffer overflow in nasm 2.16.02rc1 (GitHub commit: b952891). Netwide Assembler No fix yet Fix from $1,9502023-05-17 MEDIUM 5.5 CVE-2022-44368 NASM v2.16 was discovered to contain a null pointer deference in the NASM component Netwide Assembler No fix yet Fix from $1,6002023-03-29 MEDIUM 5.5 CVE-2022-44369 NASM 2.16 (development) is vulnerable to 476: Null Pointer Dereference via output/outaout.c. Netwide Assembler No fix yet Fix from $1,6002023-03-29 MEDIUM 6.1 CVE-2022-46456 NASM v2.16 was discovered to contain a global buffer overflow in the component dbgdbg_typevalue at /output/outdbg.c. Netwide Assembler No fix yet Fix from $1,6002023-01-04 MEDIUM 5.5 CVE-2022-46457 NASM v2.16 was discovered to contain a segmentation violation in the component ieee_write_file at /output/outieee.c. Netwide Assembler No fix yet Fix from $1,6002023-01-04 MEDIUM 5.5 CVE-2022-41420 nasm v2.16 was discovered to contain a stack overflow in the Ndisasm component Netwide Assembler No fix yet Fix from $1,6002022-10-03 MEDIUM 5.5 CVE-2021-33450 An issue was discovered in NASM version 2.16rc0. There are memory leaks in nasm_calloc() in nasmlib/alloc.c. Netwide Assembler No fix yet Fix from $1,6002022-07-26 MEDIUM 5.5 CVE-2021-33452 An issue was discovered in NASM version 2.16rc0. There are memory leaks in nasm_malloc() in nasmlib/alloc.c. Netwide Assembler No fix yet Fix from $1,6002022-07-26 MEDIUM 5.5 CVE-2021-45256 A Null Pointer Dereference vulnerability existfs in nasm 2.16rc0 via asm/preproc.c. Netwide Assembler Mitigation only Fix from $1,6002021-12-22 MEDIUM 5.5 CVE-2021-45257 An infinite loop vulnerability exists in nasm 2.16rc0 via the gpaste_tokens function. Netwide Assembler Mitigation only Fix from $1,6002021-12-22 CRITICAL 9.8 CVE-2020-24978 In NASM 2.15.04rc3, there is a double-free vulnerability in pp_tokline asm/preproc.c. This is fixed in commit 8806c3ca007b84accac21dd88b900fb03614ceb… Netwide Assembler No fix yet Fix from $2,3002020-09-04 MEDIUM 5.5 CVE-2020-24241 In Netwide Assembler (NASM) 2.15rc10, there is heap use-after-free in saa_wbytes in nasmlib/saa.c. Netwide Assembler No fix yet Fix from $1,6002020-08-25 MEDIUM 5.5 CVE-2020-24242 In Netwide Assembler (NASM) 2.15rc10, SEGV can be triggered in tok_text in asm/preproc.c by accessing READ memory. Netwide Assembler No fix yet Fix from $1,6002020-08-25 HIGH 7.1 CVE-2019-20352 In Netwide Assembler (NASM) 2.15rc0, a heap-based buffer over-read occurs (via a crafted .asm file) in set_text_free when called from expand_one_smac… Netwide Assembler No fix yet Fix from $1,9502020-01-06 MEDIUM 5.5 CVE-2019-20334 In Netwide Assembler (NASM) 2.14.02, stack consumption occurs in expr# functions in asm/eval.c. This potentially affects the relationships among expr… Netwide Assembler No fix yet Fix from $1,6002020-01-04