What is CVE-2021-33450?

CVE-2021-33450 is a medium-severity vulnerability in Nasm Netwide Assembler, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 5.5/10. Published 2022-07-26.

How severe is CVE-2021-33450?

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

Is CVE-2021-33450 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Nasm Netwide Assembler

CVE-2021-33450

An issue was discovered in NASM version 2.16rc0. There are memory leaks in nasm_calloc() in nasmlib/alloc.c.

EPSS: 0.003 (25.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Nasm Netwide_assembler — versions 2.16
N/a — versions n/a

Weakness classification (CWE)

CWE-401 — Missing Release of Memory after Effective Lifetime

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)
cve@mitre.org (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-33450?: CVE-2021-33450 is a medium-severity vulnerability in Nasm Netwide Assembler, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 5.5/10. Published 2022-07-26.
How severe is CVE-2021-33450?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2021-33450 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.