CVE-2021-3872
Heap-based Buffer Overflow in vim/vim
HIGH
7.8
CVSS Score
Published: October 19, 2021 at 12:30 PM UTC
Updated: June 17, 2026 at 04:05 AM UTC
3 products affected across 3 vendorsDebian LinuxFedoraVim
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Severity
HIGH7.8
Exploit prediction
EPSS 1%
Description
vim is vulnerable to Heap-based Buffer Overflow
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Debian Linux· Debiandrupal
95%Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://github.com/vim/vim/commit/826bfe4bbd7594188e3d74d2539d9707b1c6a14b
- https://huntr.dev/bounties/c958013b-1c09-4939-92ca-92f50aa169e8
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7K4JJBIH3OQSZRVTWKCJCDLGMFGQ5DOH/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S42L4Z4DTW4LHLQ4FJ33VEOXRCBE7WN4/
- https://security.gentoo.org/glsa/202208-32
References (7)
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/vim/vim/commit/826bfe4bbd7594188e3d74d2539d9707b1c6a14bx_refsource_CONFIRMExploitPatchThird Party Advisory
Source: [email protected]
https://huntr.dev/bounties/c958013b-1c09-4939-92ca-92f50aa169e8Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2022/03/msg00018.htmlVendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7K4JJBIH3OQSZRVTWKCJCDLGMFGQ5DOH/Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S42L4Z4DTW4LHLQ4FJ33VEOXRCBE7WN4/Vendor Advisoryx_refsource_GENTOOThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/202208-32Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.debian.org/debian-lts-announce/2025/03/msg00023.htmlCVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-122CWE-787
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