Vim is a greatly improved version of the good old UNIX editor Vi. Vim allows to redirect screen messages using the `:redir` ex command to register, variables and files. It also allows to show the contents of registers using the `:registers` or `:display` ex command. When redirecting the output of `:display` to a register, Vim will free the register content before storing the new content in the register. Now when redirecting the `:display` command to a register that is being displayed, Vim will free the content while shortly afterwards trying to access it, which leads to a use-after-free. Vim pre 9.1.1115 checks in the ex_display() function, that it does not try to redirect to a register while displaying this register at the same time. However this check is not complete, and so Vim does not check the `+` and `*` registers (which typically donate the X11/clipboard registers, and when a clipboard connection is not possible will fall back to use register 0 instead. In Patch 9.1.1115 Vim will therefore skip outputting to register zero when trying to redirect to the clipboard registers `*` or `+`. Users are advised to upgrade. There are no known workarounds for this vulnerability.

vendor_unpatched cve-2025-26603: Unpatched CVEs for Debian Linux (cve-2025-26603)

The version of vim installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2025-26603 advisory.

  - Vim is a greatly improved version of the good old UNIX editor Vi. Vim allows to redirect screen messages     using the `:redir` ex command to register, variables and files. It also allows to show the contents of     registers using the `:registers` or `:display` ex command. When redirecting the output of `:display` to a     register, Vim will free the register content before storing the new content in the register. Now when     redirecting the `:display` command to a register that is being displayed, Vim will free the content while     shortly afterwards trying to access it, which leads to a use-after-free. Vim pre 9.1.1115 checks in the     ex_display() function, that it does not try to redirect to a register while displaying this register at     the same time. However this check is not complete, and so Vim does not check the `+` and `*` registers     (which typically donate the X11/clipboard registers, and when a clipboard connection is not possible will     fall back to use register 0 instead. In Patch 9.1.1115 Vim will therefore skip outputting to register zero     when trying to redirect to the clipboard registers `*` or `+`. Users are advised to upgrade. There are no     known workarounds for this vulnerability. (CVE-2025-26603)

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

The version of vim installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2025-26603 advisory.

  - Vim is a greatly improved version of the good old UNIX editor Vi. Vim allows to redirect screen messages     using the `:redir` ex command to register, variables and files. It also allows to show the contents of     registers using the `:registers` or `:display` ex command. When redirecting the output of `:display` to a     register, Vim will free the register content before storing the new content in the register. Now when     redirecting the `:display` command to a register that is being displayed, Vim will free the content while     shortly afterwards trying to access it, which leads to a use-after-free. Vim pre 9.1.1115 checks in the     ex_display() function, that it does not try to redirect to a register while displaying this register at     the same time. However this check is not complete, and so Vim does not check the `+` and `*` registers     (which typically donate the X11/clipboard registers, and when a clipboard connection is not possible will     fall back to use register 0 instead. In Patch 9.1.1115 Vim will therefore skip outputting to register zero     when trying to redirect to the clipboard registers `*` or `+`. Users are advised to upgrade. There are no     known workarounds for this vulnerability. (CVE-2025-26603)

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

The remote Fedora 40 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2025-3e178bb819 advisory.

    The newest upstream commit

    Security fix for CVE-2025-26603

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

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

The remote Fedora 41 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2025-a71acb72e9 advisory.

    The newest upstream commit

    Security fix for CVE-2025-26603

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

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

ID	Name	Product	Family	Severity
233084	Azure Linux 3.0 Security Update: vim (CVE-2025-26603)	Nessus	Azure Linux Local Security Checks	medium
216888	CBL Mariner 2.0 Security Update: vim (CVE-2025-26603)	Nessus	MarinerOS Local Security Checks	medium
216676	Fedora 40 : vim (2025-3e178bb819)	Nessus	Fedora Local Security Checks	medium
216576	Fedora 41 : vim (2025-a71acb72e9)	Nessus	Fedora Local Security Checks	medium

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