CVE-2025-8845 - CVE House
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Status published Medium CVE-2025-8845

NASM Netwide Assember nasm.c assemble_file stack-based overflow

Vulnerability Description

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 public and may be used.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • xdcao (VulDB User)

References

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CVE-2025-8843
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CVE-2025-8842
NASM Netwide Assember preproc.c do_directive use after free
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Affected Vendor

Affected Software

Netwide Assember
Vulnerable Versions:
2.17rc0

Timeline

Official Publish: August 11th, 2025
Last Modified: August 12th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

Weaknesses (CWE)

CWE-121 CWE-119

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application
Initial Access
T1068 Exploitation for Privilege Escalation
Privilege Escalation
T1055 Process Injection
Defense Evasion
T1105 Ingress Tool Transfer
Command and Control
T1485 Data Destruction
Impact
T1203 Exploitation for Client Execution
Execution