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    CVE-2023-46246

    Vim is an improved version of the good old UNIX editor Vi. Heap-use-after-free in memory allocated in the function `ga_grow_inner` in in the file `src/alloc.c` at line 748, which is freed in the file `src/ex_docmd.c` in the function `do_cmdline` at line 1010 and then used again in `src/cmdhist.c` at line 759. When using the `:history` command, it's possible that the provided argument overflows the accepted value. Causing an Integer Overflow and potentially later an use-after-free. This vulnerability has been patched in version 9.0.2068.

    Published:Oct 27, 2023
    Last Modified:Jun 23, 2026
    EPS:Oct 27, 2023
    EPSS Score:0.00366
    CVSS Score:4

    Affected Products

    Vendor
    Vim
    Product
    Vim

    Exploits

    https://github.com/vim/vim/security/advisories/GHSA-q22m-h7m2-9mgmhttps://github.com/vim/vim/security/advisories/GHSA-q22m-h7m2-9mgm

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-92 Forced Integer Overflow

    Related CVEs

    CVE-2026-43961 (CVSS 7.8) — A flaw was found in Vim's netrw plugin. A crafted filename containing quote characters and expression fragment…
    CVE-2026-73073 (CVSS 7.1) — Vim is an open source, command line text editor. Prior to 9.2.0845, StructMembers() in runtime/autoload/ccompl…
    CVE-2026-73078 (CVSS 8.6) — Vim is an open source, command line text editor. Prior to 9.2.0840, runtime/plugin/netrwPlugin.vim loads netrw…
    CVE-2026-73077 (CVSS 8.4) — Vim is an open source, command line text editor. Prior to 9.2.0839, the runtime/ftplugin/sh.vim, runtime/ftplu…
    CVE-2026-73076 (CVSS 8.4) — Vim is an open source, command line text editor. Prior to 9.2.0847, runtime/autoload/vimball.vim allows a craf…
    CVE-2026-73075 (CVSS 4.6) — Vim is an open source, command line text editor. From 9.2.0469 until 9.2.0843, popup_mark_opacity_zindex() in …
    CVE-2026-73074 (CVSS 7.1) — Vim is an open source, command line text editor. Prior to 9.2.0841, prop_add_one() in src/textprop.c uses the …
    CVE-2026-73072 (CVSS 8.5) — Vim is an open source, command line text editor. Prior to 9.2.0846, set_sofo() in src/spellfile.c reuses sl_sa…
    CVE-2026-73071 (CVSS 3.3) — Vim is an open source, command line text editor. From 9.2.0511 until 9.2.0844, json_decode_item() in src/json.…
    CVE-2026-73070 (CVSS 6.8) — Vim is an open source, command line text editor. Prior to 9.2.0842, the socket server backend in src/socketser…

    References

    https://github.com/vim/vim/commit/9198c1f2b1ddecde22af918541e0de2a32f0f45a
    https://github.com/vim/vim/security/advisories/GHSA-q22m-h7m2-9mgm
    https://lists.fedoraproject.org/archives/list/[email protected]/message/DNMFS3IH74KEMMESOA3EOB6MZ56TWGFF/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/IVA7K73WHQH4KVFDJQ7ELIUD2WK5ZT5E/
    https://security.netapp.com/advisory/ntap-20231208-0006/
    https://github.com/vim/vim/commit/9198c1f2b1ddecde22af918541e0de2a32f0f45a
    https://github.com/vim/vim/security/advisories/GHSA-q22m-h7m2-9mgm
    https://lists.fedoraproject.org/archives/list/[email protected]/message/DNMFS3IH74KEMMESOA3EOB6MZ56TWGFF/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/IVA7K73WHQH4KVFDJQ7ELIUD2WK5ZT5E/
    https://security.netapp.com/advisory/ntap-20231208-0006/

    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