What is CVE-2018-19213?

CVE-2018-19213 is a medium-severity vulnerability in Nasm Netwide Assembler, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 5.5/10. Published 2018-11-12.

How severe is CVE-2018-19213?

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

Vulnerability in Nasm Netwide Assembler

CVE-2018-19213

Netwide Assembler (NASM) through 2.14rc16 has memory leaks that may lead to DoS, related to nasm_malloc in nasmlib/malloc.c.

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: 0.007 (53.3th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Nasm Netwide Assembler — versions 12.14

Weakness classification (CWE)

CWE-772 — Missing Release of Resource after Effective Lifetime

References

bugzilla.nasm.us/show_bug.cgi (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2018-19213?: CVE-2018-19213 is a medium-severity vulnerability in Nasm Netwide Assembler, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 5.5/10. Published 2018-11-12.
How severe is CVE-2018-19213?: Medium severity. CVSS v3 base score is 5.5 out of 10.