Is CVE-2018-16999 in the CISA KEV catalog?

No. CVE-2018-16999 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-16999?

CVE-2018-16999 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2018-16999?

CVE-2018-16999 has an EPSS score of 1.03% (60th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-16999?

Upgrade nasm on debian 11 to 2.14-1 or later.

CVE & CISA-KEV Catalog

CVE-2018-16999

MEDIUM

5.5

CVSS v3

NVD

Description

Netwide Assembler (NASM) 2.14rc15 has an invalid memory write (segmentation fault) in expand_smacro in preproc.c, which allows attackers to cause a denial of service via a crafted input file.

CWE-787Out-of-bounds Write

How to fix

Remediation Available

nasmDebian

Fixed in:2.14-1CVE-2018-16999

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Exploit Intelligence

1.03%probability of exploitation in 30 days

60thpercentile

Moderate risk: more likely to be exploited than 60% of all known CVEs.

References

Exploit1

bugzilla.nasm.us

Other references2

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2023-4863	High	8.8	100%	KEV	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix

Embed a live status badge for CVE-2018-16999

Markdown

[![CVE-2018-16999](https://tridentstack.com/cve/badge/CVE-2018-16999.svg)](https://tridentstack.com/cve/CVE-2018-16999)

HTML

<a href="https://tridentstack.com/cve/CVE-2018-16999"><img src="https://tridentstack.com/cve/badge/CVE-2018-16999.svg" alt="CVE-2018-16999"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.