CVE-2021-4019

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-4019
vim is vulnerable to Heap-based Buffer Overflow

7.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References
Link Resource
http://www.openwall.com/lists/oss-security/2022/01/15/1 Mailing List Third Party Advisory
https://github.com/vim/vim/commit/bd228fd097b41a798f90944b5d1245eddd484142 Patch Third Party Advisory
https://huntr.dev/bounties/d8798584-a6c9-4619-b18f-001b9a6fca92 Exploit Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/03/msg00018.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/11/msg00009.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DRPAI5JVZLI7WHWSBR6NWAPBQAYUQREW/ Broken Link Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNXY7T5OORA7UJIMGSJBGHFMU6UZWS6P/ Broken Link Third Party Advisory
https://security.gentoo.org/glsa/202208-32 Third Party Advisory
http://www.openwall.com/lists/oss-security/2022/01/15/1 Mailing List Third Party Advisory
https://github.com/vim/vim/commit/bd228fd097b41a798f90944b5d1245eddd484142 Patch Third Party Advisory
https://huntr.dev/bounties/d8798584-a6c9-4619-b18f-001b9a6fca92 Exploit Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/03/msg00018.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/11/msg00009.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2025/03/msg00023.html Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DRPAI5JVZLI7WHWSBR6NWAPBQAYUQREW/ Broken Link Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNXY7T5OORA7UJIMGSJBGHFMU6UZWS6P/ Broken Link Third Party Advisory
https://security.gentoo.org/glsa/202208-32 Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:neovim:neovim:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:a:vim:vim:*:*:*:*:*:*:*:*

Configuration 3 (hide)

OR cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*

Configuration 4 (hide)

OR 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:*:*:*:*:*:*:*
History

29 May 2026, 20:09

Type Values Removed Values Added
CPE cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
cpe:2.3:a:neovim:neovim:*:*:*:*:*:*:*:*
References () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DRPAI5JVZLI7WHWSBR6NWAPBQAYUQREW/ - () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DRPAI5JVZLI7WHWSBR6NWAPBQAYUQREW/ - Broken Link, Third Party Advisory
References () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNXY7T5OORA7UJIMGSJBGHFMU6UZWS6P/ - () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNXY7T5OORA7UJIMGSJBGHFMU6UZWS6P/ - Broken Link, Third Party Advisory
References () https://lists.debian.org/debian-lts-announce/2025/03/msg00023.html - () https://lists.debian.org/debian-lts-announce/2025/03/msg00023.html - Third Party Advisory
First Time Neovim neovim
Neovim

03 Nov 2025, 21:15

Type Values Removed Values Added
References
  • () https://lists.debian.org/debian-lts-announce/2025/03/msg00023.html -

21 Nov 2024, 06:36

Type Values Removed Values Added
References () http://www.openwall.com/lists/oss-security/2022/01/15/1 - Mailing List, Third Party Advisory () http://www.openwall.com/lists/oss-security/2022/01/15/1 - Mailing List, Third Party Advisory
References () https://github.com/vim/vim/commit/bd228fd097b41a798f90944b5d1245eddd484142 - Patch, Third Party Advisory () https://github.com/vim/vim/commit/bd228fd097b41a798f90944b5d1245eddd484142 - Patch, Third Party Advisory
References () https://huntr.dev/bounties/d8798584-a6c9-4619-b18f-001b9a6fca92 - Exploit, Third Party Advisory () https://huntr.dev/bounties/d8798584-a6c9-4619-b18f-001b9a6fca92 - Exploit, Third Party Advisory
References () https://lists.debian.org/debian-lts-announce/2022/03/msg00018.html - Mailing List, Third Party Advisory () https://lists.debian.org/debian-lts-announce/2022/03/msg00018.html - Mailing List, Third Party Advisory
References () https://lists.debian.org/debian-lts-announce/2022/11/msg00009.html - Mailing List, Third Party Advisory () https://lists.debian.org/debian-lts-announce/2022/11/msg00009.html - Mailing List, Third Party Advisory
References () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DRPAI5JVZLI7WHWSBR6NWAPBQAYUQREW/ - () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DRPAI5JVZLI7WHWSBR6NWAPBQAYUQREW/ -
References () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNXY7T5OORA7UJIMGSJBGHFMU6UZWS6P/ - () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNXY7T5OORA7UJIMGSJBGHFMU6UZWS6P/ -
References () https://security.gentoo.org/glsa/202208-32 - Third Party Advisory () https://security.gentoo.org/glsa/202208-32 - Third Party Advisory

07 Nov 2023, 03:40

Type Values Removed Values Added
References
  • {'url': 'https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DRPAI5JVZLI7WHWSBR6NWAPBQAYUQREW/', 'name': 'FEDORA-2021-469afb66c9', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'FEDORA'}
  • {'url': 'https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FNXY7T5OORA7UJIMGSJBGHFMU6UZWS6P/', 'name': 'FEDORA-2021-b0ac29efb1', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'FEDORA'}
  • () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNXY7T5OORA7UJIMGSJBGHFMU6UZWS6P/ -
  • () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DRPAI5JVZLI7WHWSBR6NWAPBQAYUQREW/ -
Information

Published : 2021-12-01 10:15

Updated : 2026-06-17 04:18

NVD link : CVE-2021-4019

Mitre link : CVE-2021-4019

CVE.ORG link : CVE-2021-4019

JSON object : View

Products Affected

fedoraproject

  • fedora

debian

  • debian_linux

neovim

  • neovim

vim

  • vim
CWE
CWE-122

Heap-based Buffer Overflow

CWE-787

Out-of-bounds Write