Nasm vulnerabilities, page 4

75 vulnerabilities

Known vulnerabilities in Nasm products, newest first, with CVSS severity, EPSS, KEV listings and ransomware use, across 3 products.

10CVE-2004-1287debiannasm+1
EPSS score
17.88%
Buffer overflow in the error function in preproc.c for NASM 0.98.38 1.2 allows attackers to execute arbitrary code via a crafted asm file, a different vulnerability than CVE-2005-1194.
7.1CVE-2019-20352debiannasm+2
EPSS score
0.84%
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_smacro in asm/preproc.c.
5.5CVE-2019-20334debiannasm+2
EPSS score
0.76%
In Netwide Assembler (NASM) 2.14.02, stack consumption occurs in expr# functions in asm/eval.c. This potentially affects the relationships among expr0, expr1, expr2, expr3, expr4, expr5, and expr6 (and stdscan in asm/stdscan.c). This is similar to CVE-2019-6290 and CVE-2019-6291.
5.5CVE-2019-14248debiannasm+2
EPSS score
0.92%
In libnasm.a in Netwide Assembler (NASM) 2.14.xx, asm/pragma.c allows a NULL pointer dereference in process_pragma, search_pragma_list, and nasm_set_limit when "%pragma limit" is mishandled.
5.5CVE-2019-7147ubuntunasm+1
EPSS score
0.75%
A buffer over-read exists in the function crc64ib in crc64.c in nasmlib in Netwide Assembler (NASM) 2.14rc16. A crafted asm input can cause segmentation faults, leading to denial-of-service.
5.5CVE-2019-6291debiannasm+2
EPSS score
1.27%
An issue was discovered in the function expr6 in eval.c in Netwide Assembler (NASM) through 2.14.02. There is a stack exhaustion problem caused by the expr6 function making recursive calls to itself in certain scenarios involving lots of '!' or '+' or '-' characters. Remote attackers could leverage this vulnerability to cause a denial-of-service via a crafted asm file.
5.5CVE-2019-6290debiannasm+2
EPSS score
1.26%
An infinite recursion issue was discovered in eval.c in Netwide Assembler (NASM) through 2.14.02. There is a stack exhaustion problem resulting from infinite recursion in the functions expr, rexp, bexpr and cexpr in certain scenarios involving lots of '{' characters. Remote attackers could leverage this vulnerability to cause a denial-of-service via a crafted asm file.
7.8CVE-2019-8343debiannasm+2
EPSS score
1.14%
In Netwide Assembler (NASM) 2.14.02, there is a use-after-free in paste_tokens in asm/preproc.c.
9.6CVE-2026-6068debiannasm+3
EPSS score
0.48%
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.
7.5CVE-2026-6067debiannasm+3
EPSS score
0.36%
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.
7.5CVE-2026-6069debiannasm+3
EPSS score
0.46%
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.
7.8CVE-2023-31722debiannasm+2
EPSS score
0.35%
There exists a heap buffer overflow in nasm 2.16.02rc1 (GitHub commit: b952891).
5.5CVE-2023-38668debiannasm+2
EPSS score
0.29%
Stack-based buffer over-read in disasm in nasm 2.16 allows attackers to cause a denial of service (crash).
5.5CVE-2023-38667debiannasm+2
EPSS score
0.29%
Stack-based buffer over-read in function disasm in nasm 2.16 allows attackers to cause a denial of service.
5.5CVE-2023-38665debiannasm+2
EPSS score
0.31%
Null pointer dereference in ieee_write_file in nasm 2.16rc0 allows attackers to cause a denial of service (crash).