OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.3.0 through 3.3.5 and 3.4.0 through 3.4.2, while fuzzing `openexr_exrcheck_fuzzer`, Valgrind reports a conditional branch depending on uninitialized data inside `generic_unpack`. This indicates a use of uninitialized memory. The issue can result in undefined behavior and/or a potential crash/denial of service. Versions 3.3.6 and 3.4.3 fix the issue.

The remote Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-0e8fe3c8a3 advisory.

    Update to openexr-3.3.6, fixes multiple security issues.

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-2026-1fbf91067c advisory.

    Update to openexr-3.3.6, fixes multiple security issues.

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 42 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2025-447047dda8 advisory.

    Backport fixes for CVE-2025-64181 etc. in OpenEXRCore

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 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2025-4924a5bc8b advisory.

    Backport fixes for CVE-2025-64181 etc. in OpenEXRCore


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 openSUSE 16 host has packages installed that are affected by a vulnerability as referenced in the openSUSE- SU-2025-20056-1 advisory.

    - CVE-2025-64181: Fixed use of uninitialized memory in function generic_unpack() (bsc#1253233)

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

  - OpenEXR provides the specification and reference implementation of the EXR file format, an image storage     format for the motion picture industry. In versions 3.3.0 through 3.3.5 and 3.4.0 through 3.4.2, while     fuzzing `openexr_exrcheck_fuzzer`, Valgrind reports a conditional branch depending on uninitialized data     inside `generic_unpack`. This indicates a use of uninitialized memory. The issue can result in undefined     behavior and/or a potential crash/denial of service. Versions 3.3.6 and 3.4.3 fix the issue.
    (CVE-2025-64181)

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

ID	Name	Product	Family	Severity
296580	Fedora 42 : mingw-openexr (2026-0e8fe3c8a3)	Nessus	Fedora Local Security Checks	high
296550	Fedora 43 : mingw-openexr (2026-1fbf91067c)	Nessus	Fedora Local Security Checks	high
278737	Fedora 42 : usd (2025-447047dda8)	Nessus	Fedora Local Security Checks	medium
278729	Fedora 43 : usd (2025-4924a5bc8b)	Nessus	Fedora Local Security Checks	medium
276602	openSUSE 16 Security Update : openexr (openSUSE-SU-2025-20056-1)	Nessus	SuSE Local Security Checks	medium
274729	Linux Distros Unpatched Vulnerability : CVE-2025-64181	Nessus	Misc.	medium

Detections

Analytics

CVE-2025-64181

medium

Tenable Plugins

high

high

medium

medium

medium

medium