Vim is an open source, command line text editor. Prior to 9.2.0698, the single-byte branch of spell_soundfold_sofo() in src/spell.c translates a word through a spell file's SOFO (sound-folding) byte map into a caller-owned result buffer. Its copy loop advances the output index ri with no upper bound and terminates only on the input NUL, writing one byte per input byte into the MAXWLEN-element stack buffer the caller provides. A word longer than MAXWLEN, passed to soundfold() (or reached via sound-based spell suggestion) while a SOFO-based spell language is active, therefore writes past the end of that buffer. This is a stack out-of-bounds write that corrupts the call frame and crashes the editor. This vulnerability is fixed in 9.2.0698.

amazon_alas ALAS2023-2026-1940: Amazon Linux 2023 Security Advisory:ALAS2023-2026-1940

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8500-1 advisory.

    It was discovered that Vim incorrectly handled path traversal in the zip.vim plugin. An attacker could     possibly use this issue to overwrite arbitrary files. This issue only affected Ubuntu 14.04 LTS, Ubuntu     16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. (CVE-2026-35177)

    It was discovered that Vim incorrectly handled depth tracking when processing spell files. An attacker     could possibly use this issue to cause a denial of service. (CVE-2026-55693, CVE-2026-55892)

    It was discovered that Vim incorrectly handled filename escaping in the netrw plugin. An attacker could     possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04     LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, Ubuntu 25.10, and Ubuntu 26.04 LTS.
    (CVE-2026-55895)

    It was discovered that Vim incorrectly handled length calculations when opening encrypted files. An     attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 22.04     LTS, Ubuntu 24.04 LTS, Ubuntu 25.10, and Ubuntu 26.04 LTS. (CVE-2026-57452)

    Dhruv Vishesh Gupta discovered that Vim incorrectly handled quoting of archive entry names. An attacker     could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 26.04 LTS.
    (CVE-2026-57453)

    It was discovered that Vim incorrectly handled bounds checking when translating words through a byte map.
    An attacker could possibly use this issue to cause a denial of service. (CVE-2026-57455)

    Chenyuan Mi discovered that Vim incorrectly handled docstring escaping during Python omni-completion. An     attacker could possibly use this issue to execute arbitrary code. (CVE-2026-57456)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Vim is an open source, command line text editor. Prior to 9.2.0698, the single-byte branch of     spell_soundfold_sofo() in src/spell.c translates a word through a spell file's SOFO (sound-folding) byte     map into a caller-owned result buffer. Its copy loop advances the output index ri with no upper bound and     terminates only on the input NUL, writing one byte per input byte into the MAXWLEN-element stack buffer     the caller provides. A word longer than MAXWLEN, passed to soundfold() (or reached via sound-based spell     suggestion) while a SOFO-based spell language is active, therefore writes past the end of that buffer.
    This is a stack out-of-bounds write that corrupts the call frame and crashes the editor. This     vulnerability is fixed in 9.2.0698. (CVE-2026-57455)

Note that Nessus relies on the presence of the package as reported by the vendor.

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

  - Vim is an open source, command line text editor. Prior to 9.2.0698, the single-byte branch of
    spell_soundfold_sofo() in src/spell.c translates a word through a spell file's SOFO (sound-folding) byte
    map into a caller-owned result buffer. Its copy loop advances the output index ri with no upper bound and
    terminates only on the input NUL, writing one byte per input byte into the MAXWLEN-element stack buffer
    the caller provides. A word longer than MAXWLEN, passed to soundfold() (or reached via sound-based spell
    suggestion) while a SOFO-based spell language is active, therefore writes past the end of that buffer.
    This is a stack out-of-bounds write that corrupts the call frame and crashes the editor. This
    vulnerability is fixed in 9.2.0698. (CVE-2026-57455)

  - Vim is an open source, command line text editor. Prior to 9.2.0699, Vim's Python omni-completion
    (runtime/autoload/python3complete.vim and the legacy pythoncomplete.vim) executes reconstructed function
    and class definitions from the current buffer with exec() as part of populating the completion dictionary.
    When reconstructing that source, each scope's docstring is inserted verbatim between triple quotes with no
    escaping, so a hostile buffer can break out of the triple-quoted literal and execute attacker-controlled
    Python during omni-completion. This vulnerability is fixed in 9.2.0699. (CVE-2026-57456)

ID	Name	Product	Family	Severity
324991	Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS : Vim vulnerabilities (USN-8500-1)	Nessus	Ubuntu Local Security Checks	high
323770	Linux Distros Unpatched Vulnerability : CVE-2026-57455	Nessus	Misc.	high
443965	Alpine: gvim, multiple vim packages, xxd: security update to 9.2.0699-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	high
443965	Alpine: gvim, multiple vim packages, xxd: security update to 9.2.0699-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	high

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