A flaw was found in libcupsfilters. The cfIEEE1284NormalizeMakeModel() function enters an infinite loop when processing a printer-advertised IEEE-1284 device ID with an empty model field, causing sustained CPU consumption. A network-adjacent attacker could exploit this by broadcasting a specially crafted printer advertisement, leading to denial of service.

The remote Oracle Linux 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2026-56965 advisory.

    - RHEL-214027 CVE-2026-64611 libcupsfilters: Fix infinite loop and       empty device_ids in ieee1284

Tenable has extracted the preceding description block directly from the Oracle Linux 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 remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:56965 advisory.

    * libcupsfilters: cups-filters: libcupsfilters: CPU exhaustion via infinite loop in     cfIEEE1284NormalizeMakeModel() (CVE-2026-64611)

    * libcupsfilters: cups-filters: libcupsfilters: CUPS image filter process abort via malformed PNG     (CVE-2026-64612)

Tenable has extracted the preceding description block directly from the RockyLinux 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 remote AlmaLinux 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the ALSA-2026:56965 advisory.

    * libcupsfilters: cups-filters: libcupsfilters: CPU exhaustion via infinite loop in     cfIEEE1284NormalizeMakeModel() (CVE-2026-64611)
      * libcupsfilters: cups-filters: libcupsfilters: CUPS image filter process abort via malformed PNG     (CVE-2026-64612)

Tenable has extracted the preceding description block directly from the AlmaLinux 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 remote Redhat Enterprise Linux 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:56965 advisory.

    Libcupsfilters provides a library, which implements common functions used in cups-browsed daemon and     printing filters, and additional files as banner templates and character sets. The filters are used in     CUPS daemon and in printer applications.

    Security Fix(es):

    * libcupsfilters: cups-filters: libcupsfilters: CPU exhaustion via infinite loop in     cfIEEE1284NormalizeMakeModel() (CVE-2026-64611)

    * libcupsfilters: cups-filters: libcupsfilters: CUPS image filter process abort via malformed PNG     (CVE-2026-64612)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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 remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-f77201a75e advisory.

    Security fixes for CVE-2026-64611, CVE-2026-64612

Tenable has extracted the preceding description block directly from the Fedora 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 remote Fedora 45 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-d0c531d75b advisory.

    Automatic update for libcupsfilters-2.2.1-1.fc45.

    ##### **Changelog**

    ```
    * Tue Aug 11 2026 Zdenek Dohnal <zdohnal@redhat.com> - 1:2.2.1-1
    - fix pclmtoraster issues found in CI, 2.2.1 (fedora#2513920)
    * Thu Aug  6 2026 Zdenek Dohnal <zdohnal@redhat.com> - 1:2.2.0-1
    - libcupsfilters-2.2.0 is available (fedora#2511889)
    * Wed Aug  5 2026 Zdenek Dohnal <zdohnal@redhat.com> - 1:2.1.1-9
    - fixes CVE-2026-64611 and CVE-2026-64612 (fedora#2506364)

    ```

Tenable has extracted the preceding description block directly from the Fedora 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 remote Fedora 46 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-31aeb83b8c advisory.

    Automatic update for libcupsfilters-2.2.1-1.fc46.

    ##### **Changelog**

    ```
    * Tue Aug 11 2026 Zdenek Dohnal <zdohnal@redhat.com> - 1:2.2.1-1
    - fix pclmtoraster issues found in CI, 2.2.1 (fedora#2513920)
    * Thu Aug  6 2026 Zdenek Dohnal <zdohnal@redhat.com> - 1:2.2.0-1
    - libcupsfilters-2.2.0 is available (fedora#2511889)
    * Wed Aug  5 2026 Zdenek Dohnal <zdohnal@redhat.com> - 1:2.1.1-9
    - fixes CVE-2026-64611 and CVE-2026-64612 (fedora#2506364)

    ```

Tenable has extracted the preceding description block directly from the Fedora 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 remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-1ed9130cea advisory.

    fixes CVE-2026-64611 and CVE-2026-64612 (fedora#2506364)

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

  - A flaw was found in libcupsfilters. The cfIEEE1284NormalizeMakeModel() function enters an infinite loop     when processing a printer-advertised IEEE-1284 device ID with an empty model field, causing sustained CPU     consumption. A network-adjacent attacker could exploit this by broadcasting a specially crafted printer     advertisement, leading to denial of service. (CVE-2026-64611)

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

ID	Name	Product	Family	Type	Severity
339120	Oracle Linux 10 : libcupsfilters (ELSA-2026-56965)	Nessus	Oracle Linux Local Security Checks	Local	high
338435	RockyLinux 10 : libcupsfilters (RLSA-2026:56965)	Nessus	Rocky Linux Local Security Checks	Local	high
338320	AlmaLinux 10 : libcupsfilters (ALSA-2026:56965)	Nessus	Alma Linux Local Security Checks	Local	high
338117	RHEL 10 : libcupsfilters (RHSA-2026:56965)	Nessus	Red Hat Local Security Checks	Local	high
335107	Fedora 44 : libcupsfilters (2026-f77201a75e)	Nessus	Fedora Local Security Checks	Local	high
334834	Fedora 45 : libcupsfilters (2026-d0c531d75b)	Nessus	Fedora Local Security Checks	Local	high
334733	Fedora 46 : libcupsfilters (2026-31aeb83b8c)	Nessus	Fedora Local Security Checks	Local	high
334458	Fedora 43 : libcupsfilters (2026-1ed9130cea)	Nessus	Fedora Local Security Checks	Local	high
329670	Linux Distros Unpatched Vulnerability : CVE-2026-64611	Nessus	Misc.	Local	high

Detections

Analytics

CVE-2026-64611

high

Tenable Plugins

high

high

high

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high

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high