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Vulnerability details: VCID-7gqa-ary3-hfhh
Vulnerability ID VCID-7gqa-ary3-hfhh
Aliases CVE-2018-16999
Summary Out-of-bounds Write Netwide Assembler (NASM) rc15 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.
Status Published
Exploitability 0.5
Weighted Severity 5.0
Risk 2.5
Affected and Fixed Packages Package Details
Weaknesses (4)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-787 Out-of-bounds Write
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
System Score Found at
cvssv3 5.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-16999.json
epss 0.00314 https://api.first.org/data/v1/epss?cve=CVE-2018-16999
epss 0.00314 https://api.first.org/data/v1/epss?cve=CVE-2018-16999
cvssv3 3.3 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Reference id Reference type URL
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00015.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00017.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-16999.json
https://api.first.org/data/v1/epss?cve=CVE-2018-16999
https://bugzilla.nasm.us/show_bug.cgi?id=3392508
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16999
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
1629990 https://bugzilla.redhat.com/show_bug.cgi?id=1629990
CVE-2018-16999 https://nvd.nist.gov/vuln/detail/CVE-2018-16999
No exploits are available.
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-16999.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.54838
EPSS Score 0.00314
Published At June 4, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-02T04:38:13.900625+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/nuget/nasm/CVE-2018-16999.yml 38.6.0