A vulnerability was determined in Artifex MuPDF up to 1.28.0. The impacted element is the function fz_subset_cff_for_gids of the file subset-cff.c of the component CFF Index Handler. This manipulation causes out-of-bounds read. The attack can only be executed locally. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through a bug report but has not responded yet.

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-8870088088 advisory.

    fix CVE-2026-7233 (rhbz#2463402)

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 44 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-d815916e2c advisory.

    fix CVE-2026-7233 (rhbz#2463402)

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 45 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-334a616b71 advisory.

    Automatic update for mupdf-1.27.2-4.fc45.

    ##### **Changelog**

    ```
    * Thu Jul 16 2026 Michael J Gruber <mjg@fedoraproject.org> - 1.27.2-4
    - fix CVE-2026-7233 (rhbz#2463402)

    ```

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

  - A vulnerability was determined in Artifex MuPDF up to 1.28.0. The impacted element is the function     fz_subset_cff_for_gids of the file subset-cff.c of the component CFF Index Handler. This manipulation     causes out-of-bounds read. The attack can only be executed locally. The exploit has been publicly     disclosed and may be utilized. The project was informed of the problem early through a bug report but has     not responded yet. (CVE-2026-7233)

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

ID	Name	Product	Family	Type	Severity
329575	Fedora 43 : mupdf (2026-8870088088)	Nessus	Fedora Local Security Checks	Local	medium
328872	Fedora 44 : mupdf (2026-d815916e2c)	Nessus	Fedora Local Security Checks	Local	medium
327409	Fedora 45 : mupdf (2026-334a616b71)	Nessus	Fedora Local Security Checks	Local	medium
310837	Linux Distros Unpatched Vulnerability : CVE-2026-7233	Nessus	Misc.	Local	medium

Detections

Analytics

CVE-2026-7233

medium

Tenable Plugins

medium

medium

medium

medium