CVE-2023-38665

Name: CVE-2023-38665
Creator: NVD / NIST
Published: 2023-08-22T19:16:39.093+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.29%

Last modified Jun 17, 2026

CVE-2023-38665 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. Null pointer dereference in ieee_write_file in nasm 2.16rc0 allows attackers to cause a denial of service (crash).. EPSS estimates a 0.29% chance of exploitation in the next 30 days.

Description

Null pointer dereference in ieee_write_file in nasm 2.16rc0 allows attackers to cause a denial of service (crash).

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS Probability

0.29%

20.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions	Update
Nasm	Netwide Assembler	2.16	Rc0

References

https://bugzilla.nasm.us/show_bug.cgi?id=3392818Exploit, Issue Tracking, Vendor Advisory
https://bugzilla.nasm.us/show_bug.cgi?id=3392818Exploit, Issue Tracking, Vendor Advisory

Timeline

Published: Aug 22, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-38665?

Null pointer dereference in ieee_write_file in nasm 2.16rc0 allows attackers to cause a denial of service (crash).

How severe is CVE-2023-38665?

CVE-2023-38665 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.29% probability of exploitation in the next 30 days.

How do I fix CVE-2023-38665?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-38665?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST