Read the docs
TI-2021-02910 Aliases CVE-2021-4019GHSA-r79c-6hf5-2jjx

Heap-based Buffer Overflow in vim/vim

Priority LOW 38CWE-122Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 2 fixed, 2 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-122 and the CVSS impact.

Summary

vim is vulnerable to Heap-based Buffer Overflow

Why it matters now

EPSS 0.01927 80th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial vim/vim (vim): 8.2.3669Red Hat: 1 advisoryRed Hat: 2 fixed, 2 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
vimvim/vimbefore 8.2.36698.2.3669Patch availableCNA
  • vim/vim Vendorvim Affected before 8.2.3669 Fixed in 8.2.3669 Patch available CNA

CPE configurations NVD · 7

CPEVersionsRoleVendor
cpe:2.3:a:neovim:neovim:*:*:*:*:*:*:*:*before 0.7.0VulnerableNeovim
cpe:2.3:a:vim:vim:*:*:*:*:*:*:*:*before 8.2.3669Vulnerablevim
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*34VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*35VulnerableFedoraproject
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*10.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*11.0VulnerableDebian
  • cpe:2.3:a:neovim:neovim:*:*:*:*:*:*:*:* Versions before 0.7.0 Vulnerable ·Neovim
  • cpe:2.3:a:vim:vim:*:*:*:*:*:*:*:* Versions before 8.2.3669 Vulnerable ·vim
  • cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* Versions 34 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* Versions 35 Vulnerable ·Fedoraproject
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian

Remediation

  • Fix · CNA vim/vim (vim) Fixed in 8.2.3669

Red Hat 1 advisory

  • RHSA-2022:0366 Released 2022-02-01 · Red Hat rating Moderate
    vim security update
    • Red Hat Enterprise Linux AppStream (v. 8) vim-X11-2:8.0.1763-16.el8_5.4, vim-common-2:8.0.1763-16.el8_5.4, vim-enhanced-2:8.0.1763-16.el8_5.4 +1
    • Red Hat Enterprise Linux BaseOS (v. 8) vim-2:8.0.1763-16.el8_5.4, vim-minimal-2:8.0.1763-16.el8_5.4

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2022:0366
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2022:0366
Not affected: 2 products
  • Red Hat Advanced Cluster Management for Kubernetes 2
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-4019
  2. 2026-10-03 Alias added: GHSA-r79c-6hf5-2jjx

References

Exploit 1

Patch 1

Advisory 7

  • TI-2022-03248 Heap-based Buffer Overflow in vim/vim CVSS 3.1CRITICAL 9.8
  • TI-2024-15103 Vim before 9.0.2142 has a stack-based buffer overflow because did_set_langmap in map.c… CVSS 3.1HIGH 7.8
  • TI-2023-05093 Use After Free in vim/vim CVSS 3.1HIGH 7.8
  • TI-2023-04407 Heap-based Buffer Overflow in vim/vim CVSS 3.1HIGH 7.8
  • TI-2023-04379 Heap-based Buffer Overflow in vim/vim CVSS 3.1HIGH 7.8
  • TI-2023-04378 Use After Free in vim/vim CVSS 3.1HIGH 7.8
See all 258 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences