CVE-2021-4166

Out-of-bounds Read in vim/vim

At a glance

Severity: HIGH 7.1
EPSS: EPSS 1.70 % · percentile 77 (2026-10-27)
State: PUBLISHED
Published: 2021-12-25
Updated: 2026-10-08
Assigner: @huntrdev
NVD status: Modified

Description

vim is vulnerable to Out-of-bounds Read

Scores

Version	Score	Vector	Scored by
CVSS 3.0	HIGH 7.1	CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H	@huntrdev
CVSS 3.1	HIGH 7.1	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H	NVD · nvd@nist.gov (Primary)
CVSS 3.0	HIGH 7.1	CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H	NVD · security@huntr.dev (Secondary)
CVSS 2.0	MEDIUM 5.8	AV:N/AC:M/Au:N/C:P/I:N/A:P	NVD · nvd@nist.gov (Primary)

Weaknesses (CWE)

CWE-125

European references

ENISA EUVD · EUVD-2021-34032
GCVE · GCVE-0-2021-4166

CERT-FR advisories

CERTFR-2025-AVI-0693 — Multiples vulnérabilités dans VMware Tanzu · cert.ssi.gouv.fr
CERTFR-2025-AVI-0585 — Multiples vulnérabilités dans VMware Tanzu · cert.ssi.gouv.fr
CERTFR-2022-AVI-665 — Multiples vulnérabilités dans les produits Apple · cert.ssi.gouv.fr
CERTFR-2022-AVI-467 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
CERTFR-2022-AVI-466 — Multiples vulnérabilités dans les produits Apple · cert.ssi.gouv.fr
CERTFR-2022-AVI-330 — Multiples vulnérabilités dans Stormshield Network Security · cert.ssi.gouv.fr
CERTFR-2022-AVI-243 — Multiples vulnérabilités dans les produits Apple · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:a:vim:vim:*:*:*:*:*:*:*:* < 8.2.3884
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:a:opensuse:factory:-:*:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise:12.0:*:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise:15.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-001:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-001:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-002:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-003:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-004:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-005:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-006:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-007:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-008:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2022-001:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2022-002:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2022-003:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* < 12.3
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* ≥ 11.0 < 11.6.6
cpe:2.3:o:apple:macos:10.15.7:security_update_2022-004:*:*:*:*:*:*

Affected products

Product	Versions
vim · vim/vim	affected unspecified < 8.2

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD