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CVE-2025-8844— NASM Netwide Assember preproc.c parse_smacro_template null pointer dereference

Quick assessment

Affected
NASM Netwide Assember
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

NASM Netwide Assember是NASM团队的一款汇编器和反汇编器。 NASM Netwide Assember 2.17rc0版本存在安全漏洞，该漏洞源于文件preproc.c中函数parse_smacro_template存在空指针取消引用。

CVSS 3.3 · Low EPSS 0.27% · P17

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2025-8844

Vulnerability Information
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Vulnerability Title
NASM Netwide Assember preproc.c parse_smacro_template null pointer dereference
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was determined in NASM Netwide Assember 2.17rc0. This vulnerability affects the function parse_smacro_template of the file preproc.c. The manipulation leads to null pointer dereference. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
NASM Netwide Assember 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
NASM Netwide Assember是NASM团队的一款汇编器和反汇编器。 NASM Netwide Assember 2.17rc0版本存在安全漏洞，该漏洞源于文件preproc.c中函数parse_smacro_template存在空指针取消引用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
NASM Netwide Assember 2.17rc0 -

II. Public POCs for CVE-2025-8844

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III. Intelligence Information for CVE-2025-8844

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Patches & Fixes for CVE-2025-8844 (1)

Same Patch Batch · NASM · 2025-08-11 · 5 CVEs total

CVE-2025-8842 5.3 MEDIUM NASM Netwide Assember preproc.c do_directive use after free
CVE-2025-8843 5.3 MEDIUM NASM Netwide Assember outmacho.c macho_no_dead_strip heap-based overflow
CVE-2025-8845 5.3 MEDIUM NASM Netwide Assember nasm.c assemble_file stack-based overflow
CVE-2025-8846 5.3 MEDIUM NASM Netwide Assember parser.c parse_line stack-based overflow

IV. Related Vulnerabilities

Same product: Netwide Assember
Same vendor: NASM
Same weakness: CWE-476

V. Comments for CVE-2025-8844

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