What is CVE-2018-19209?

CVE-2018-19209 is a medium-severity vulnerability in Nasm Netwide Assembler, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2018-11-12.

How severe is CVE-2018-19209?

Medium severity. CVSS v3 base score is 5.5 out of 10.

NULL pointer dereference in Nasm Netwide Assembler

CVE-2018-19209

Netwide Assembler (NASM) 2.14rc15 has a NULL pointer dereference in the function find_label in asm/labels.c that will lead to a DoS attack.

Published 2018-11-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.008 (54.0th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Nasm Netwide Assembler — versions 2.14.0

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

repo.or.cz/nasm.git/commitdiff/e996d28c70d45008085322b442b44a9224308548 (Patch, Third Party Advisory)
bugzilla.suse.com/show_bug.cgi (Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2018-19209?: CVE-2018-19209 is a medium-severity vulnerability in Nasm Netwide Assembler, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2018-11-12.
How severe is CVE-2018-19209?: Medium severity. CVSS v3 base score is 5.5 out of 10.