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    CVE-2021-4019

    vim is vulnerable to Heap-based Buffer Overflow

    Published:Nov 23, 2021
    Last Modified:May 29, 2026
    EPS:Dec 1, 2021
    EPSS Score:0.00272
    CVSS Score:7.8

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Neovim
    Product
    Neovim
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Vim
    Product
    Vim

    Exploits

    https://huntr.dev/bounties/d8798584-a6c9-4619-b18f-001b9a6fca92https://huntr.dev/bounties/d8798584-a6c9-4619-b18f-001b9a6fca92

    Related CVEs

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    CVE-2026-56968 (CVSS 3.7) — GNU SASL before 2.2.4 lacks sanitization of a short challenge in _gsasl_ntlm_client_step in the NTLM client, w…
    CVE-2026-49975 (CVSS 7.5) — Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's mod_http leads to denial of …
    CVE-2026-9256 (CVSS 9.2) — NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_rewrite_module module. This vulnerabilit…
    CVE-2026-31431 (CVSS 7.8) — In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating …
    CVE-2026-34757 (CVSS 5.1) — LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network …
    CVE-2026-4775 (CVSS 7.8) — A flaw was found in the libtiff library. A remote attacker could exploit a signed integer overflow vulnerabili…
    CVE-2025-63261 (CVSS 7.8) — AWStats 8.0 is vulnerable to Command Injection via the open function…
    CVE-2026-3497 (CVSS 6.9) — Vulnerability in the OpenSSH GSSAPI delta included in various Linux distributions. This vulnerability affects …
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    References

    http://www.openwall.com/lists/oss-security/2022/01/15/1
    https://github.com/vim/vim/commit/bd228fd097b41a798f90944b5d1245eddd484142
    https://huntr.dev/bounties/d8798584-a6c9-4619-b18f-001b9a6fca92
    https://lists.debian.org/debian-lts-announce/2022/03/msg00018.html
    https://lists.debian.org/debian-lts-announce/2022/11/msg00009.html
    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/FNXY7T5OORA7UJIMGSJBGHFMU6UZWS6P/
    https://security.gentoo.org/glsa/202208-32
    http://www.openwall.com/lists/oss-security/2022/01/15/1
    https://github.com/vim/vim/commit/bd228fd097b41a798f90944b5d1245eddd484142
    https://huntr.dev/bounties/d8798584-a6c9-4619-b18f-001b9a6fca92
    https://lists.debian.org/debian-lts-announce/2022/03/msg00018.html
    https://lists.debian.org/debian-lts-announce/2022/11/msg00009.html
    https://lists.debian.org/debian-lts-announce/2025/03/msg00023.html
    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/FNXY7T5OORA7UJIMGSJBGHFMU6UZWS6P/
    https://security.gentoo.org/glsa/202208-32

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High