Netwide Assembler
by Nasm
Source repositories
CVEs (28)
| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2026-6068 | Cri | 0.62 | 9.6 | 0.00 | Apr 10, 2026 | 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… | ||
| CVE-2018-10254 | Hig | 0.51 | 7.8 | 0.01 | Apr 21, 2018 | Netwide Assembler (NASM) 2.13 has a stack-based buffer over-read in the disasm function of the disasm/disasm.c file. Remote attackers could leverage this vulnerability to cause a denial of service or possibly have unspecified other impact via a crafted ELF file. | ||
| CVE-2017-11111 | Hig | 0.51 | 7.8 | 0.02 | Jul 8, 2017 | In Netwide Assembler (NASM) 2.14rc0, preproc.c allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted file. | ||
| CVE-2017-10686 | Hig | 0.51 | 7.8 | 0.03 | Jun 29, 2017 | In Netwide Assembler (NASM) 2.14rc0, there are multiple heap use after free vulnerabilities in the tool nasm. The related heap is allocated in the token() function and freed in the detoken() function (called by pp_getline()) - it is used again at multiple positions later that… | ||
| CVE-2026-6069 | Hig | 0.49 | 7.5 | 0.00 | Apr 10, 2026 | 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. | ||
| CVE-2017-17818 | Hig | 0.49 | 7.5 | 0.03 | Dec 21, 2017 | In Netwide Assembler (NASM) 2.14rc0, there is a heap-based buffer over-read that will cause a remote denial of service attack, related to a while loop in paste_tokens in asm/preproc.c. | ||
| CVE-2026-6067 | Med | 0.36 | 5.5 | 0.00 | Apr 10, 2026 | 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… | ||
| CVE-2017-17820 | Med | 0.36 | 5.5 | 0.01 | Dec 21, 2017 | In Netwide Assembler (NASM) 2.14rc0, there is a use-after-free in pp_list_one_macro in asm/preproc.c that will lead to a remote denial of service attack, related to mishandling of operand-type errors. | ||
| CVE-2017-17819 | Med | 0.36 | 5.5 | 0.01 | Dec 21, 2017 | In Netwide Assembler (NASM) 2.14rc0, there is an illegal address access in the function find_cc() in asm/preproc.c that will cause a remote denial of service attack, because pointers associated with skip_white_ calls are not validated. | ||
| CVE-2017-17817 | Med | 0.36 | 5.5 | 0.01 | Dec 21, 2017 | In Netwide Assembler (NASM) 2.14rc0, there is a use-after-free in pp_verror in asm/preproc.c that will cause a remote denial of service attack. | ||
| CVE-2017-17816 | Med | 0.36 | 5.5 | 0.01 | Dec 21, 2017 | In Netwide Assembler (NASM) 2.14rc0, there is a use-after-free in pp_getline in asm/preproc.c that will cause a remote denial of service attack. | ||
| CVE-2017-17815 | Med | 0.36 | 5.5 | 0.01 | Dec 21, 2017 | In Netwide Assembler (NASM) 2.14rc0, there is an illegal address access in is_mmacro() in asm/preproc.c that will cause a remote denial of service attack, because of a missing check for the relationship between minimum and maximum parameter counts. | ||
| CVE-2017-17814 | Med | 0.36 | 5.5 | 0.01 | Dec 21, 2017 | In Netwide Assembler (NASM) 2.14rc0, there is a use-after-free in do_directive in asm/preproc.c that will cause a remote denial of service attack. | ||
| CVE-2017-17813 | Med | 0.36 | 5.5 | 0.01 | Dec 21, 2017 | In Netwide Assembler (NASM) 2.14rc0, there is a use-after-free in the pp_list_one_macro function in asm/preproc.c that will cause a remote denial of service attack, related to mishandling of line-syntax errors. | ||
| CVE-2017-17812 | Med | 0.36 | 5.5 | 0.01 | Dec 21, 2017 | In Netwide Assembler (NASM) 2.14rc0, there is a heap-based buffer over-read in the function detoken() in asm/preproc.c that will cause a remote denial of service attack. | ||
| CVE-2017-17811 | Med | 0.36 | 5.5 | 0.01 | Dec 21, 2017 | In Netwide Assembler (NASM) 2.14rc0, there is a heap-based buffer overflow that will cause a remote denial of service attack, related to a strcpy in paste_tokens in asm/preproc.c, a similar issue to CVE-2017-11111. | ||
| CVE-2017-17810 | Med | 0.36 | 5.5 | 0.01 | Dec 21, 2017 | In Netwide Assembler (NASM) 2.14rc0, there is a "SEGV on unknown address" that will cause a remote denial of service attack, because asm/preproc.c mishandles macro calls that have the wrong number of arguments. | ||
| CVE-2017-14228 | Med | 0.36 | 5.5 | 0.01 | Sep 9, 2017 | In Netwide Assembler (NASM) 2.14rc0, there is an illegal address access in the function paste_tokens() in preproc.c, aka a NULL pointer dereference. It will lead to remote denial of service. | ||
| CVE-2025-8846 | Med | 0.34 | 5.3 | 0.00 | Aug 11, 2025 | 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 stack-based buffer overflow. The attack needs to be approached locally. The exploit has been disclosed to the public and may be… | ||
| CVE-2025-8845 | Med | 0.34 | 5.3 | 0.00 | Aug 11, 2025 | A vulnerability was identified in NASM Netwide Assember 2.17rc0. This issue affects the function assemble_file of the file nasm.c. The manipulation leads to stack-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to the… |
- risk 0.62cvss 9.6epss 0.00
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…
- risk 0.51cvss 7.8epss 0.01
Netwide Assembler (NASM) 2.13 has a stack-based buffer over-read in the disasm function of the disasm/disasm.c file. Remote attackers could leverage this vulnerability to cause a denial of service or possibly have unspecified other impact via a crafted ELF file.
- risk 0.51cvss 7.8epss 0.02
In Netwide Assembler (NASM) 2.14rc0, preproc.c allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted file.
- risk 0.51cvss 7.8epss 0.03
In Netwide Assembler (NASM) 2.14rc0, there are multiple heap use after free vulnerabilities in the tool nasm. The related heap is allocated in the token() function and freed in the detoken() function (called by pp_getline()) - it is used again at multiple positions later that…
- risk 0.49cvss 7.5epss 0.00
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.
- risk 0.49cvss 7.5epss 0.03
In Netwide Assembler (NASM) 2.14rc0, there is a heap-based buffer over-read that will cause a remote denial of service attack, related to a while loop in paste_tokens in asm/preproc.c.
- risk 0.36cvss 5.5epss 0.00
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…
- risk 0.36cvss 5.5epss 0.01
In Netwide Assembler (NASM) 2.14rc0, there is a use-after-free in pp_list_one_macro in asm/preproc.c that will lead to a remote denial of service attack, related to mishandling of operand-type errors.
- risk 0.36cvss 5.5epss 0.01
In Netwide Assembler (NASM) 2.14rc0, there is an illegal address access in the function find_cc() in asm/preproc.c that will cause a remote denial of service attack, because pointers associated with skip_white_ calls are not validated.
- risk 0.36cvss 5.5epss 0.01
In Netwide Assembler (NASM) 2.14rc0, there is a use-after-free in pp_verror in asm/preproc.c that will cause a remote denial of service attack.
- risk 0.36cvss 5.5epss 0.01
In Netwide Assembler (NASM) 2.14rc0, there is a use-after-free in pp_getline in asm/preproc.c that will cause a remote denial of service attack.
- risk 0.36cvss 5.5epss 0.01
In Netwide Assembler (NASM) 2.14rc0, there is an illegal address access in is_mmacro() in asm/preproc.c that will cause a remote denial of service attack, because of a missing check for the relationship between minimum and maximum parameter counts.
- risk 0.36cvss 5.5epss 0.01
In Netwide Assembler (NASM) 2.14rc0, there is a use-after-free in do_directive in asm/preproc.c that will cause a remote denial of service attack.
- risk 0.36cvss 5.5epss 0.01
In Netwide Assembler (NASM) 2.14rc0, there is a use-after-free in the pp_list_one_macro function in asm/preproc.c that will cause a remote denial of service attack, related to mishandling of line-syntax errors.
- risk 0.36cvss 5.5epss 0.01
In Netwide Assembler (NASM) 2.14rc0, there is a heap-based buffer over-read in the function detoken() in asm/preproc.c that will cause a remote denial of service attack.
- risk 0.36cvss 5.5epss 0.01
In Netwide Assembler (NASM) 2.14rc0, there is a heap-based buffer overflow that will cause a remote denial of service attack, related to a strcpy in paste_tokens in asm/preproc.c, a similar issue to CVE-2017-11111.
- risk 0.36cvss 5.5epss 0.01
In Netwide Assembler (NASM) 2.14rc0, there is a "SEGV on unknown address" that will cause a remote denial of service attack, because asm/preproc.c mishandles macro calls that have the wrong number of arguments.
- risk 0.36cvss 5.5epss 0.01
In Netwide Assembler (NASM) 2.14rc0, there is an illegal address access in the function paste_tokens() in preproc.c, aka a NULL pointer dereference. It will lead to remote denial of service.
- risk 0.34cvss 5.3epss 0.00
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 stack-based buffer overflow. The attack needs to be approached locally. The exploit has been disclosed to the public and may be…
- risk 0.34cvss 5.3epss 0.00
A vulnerability was identified in NASM Netwide Assember 2.17rc0. This issue affects the function assemble_file of the file nasm.c. The manipulation leads to stack-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to the…
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