libheif is an HEIF and AVIF file format decoder and encoder. Prior to version 1.21.0, a crafted HEIF that exercises the overlay image item path triggers a heap buffer over-read in `HeifPixelImage::overlay()`. The function computes a negative row length (likely from an unclipped overlay rectangle or invalid offsets), which then underflows when converted to `size_t` and is passed to `memcpy`, causing a very large read past the end of the source plane and a crash. Version 1.21.0 contains a patch. As a workaround, avoid decoding images using `iovl` overlay boxes.

The remote openSUSE 16 host has packages installed that are affected by a vulnerability as referenced in the openSUSE- SU-2026:20076-1 advisory.

    - CVE-2025-68431: heap buffer over-read in `HeifPixelImage::overlay()` via crafted HEIF file that     exercises the overlay       image item path (bsc#1255735).

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.

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1363 advisory.

    libheif is an HEIF and AVIF file format decoder and encoder. Prior to version 1.21.0, a crafted HEIF that     exercises the overlay image item path triggers a heap buffer over-read in `HeifPixelImage::overlay()`. The     function computes a negative row length (likely from an unclipped overlay rectangle or invalid offsets),     which then underflows when converted to `size_t` and is passed to `memcpy`, causing a very large read past     the end of the source plane and a crash. Version 1.21.0 contains a patch. As a workaround, avoid decoding     images using `iovl` overlay boxes. (CVE-2025-68431)

Tenable has extracted the preceding description block directly from the tested product 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 Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.04 / 25.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-7952-1 advisory.

    It was discovered that libheif did not correctly handle certain memory operations. An attacker could     possibly use this issue to cause a denial of service. This issue only affected Ubuntu 20.04 LTS, Ubuntu     22.04 LTS and Ubuntu 24.04 LTS. (CVE-2024-25269)

    Aldo Ristori discovered that libheif did not correctly handle certain memory operations. An attacker could     possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2025-68431)

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 remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:0087-1 advisory.

    - CVE-2025-68431: Fixed heap buffer over-read in `HeifPixelImage::overlay()` via crafted HEIF       that exercises the overlay image item (bsc#1255735)

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.

  - libheif is an HEIF and AVIF file format decoder and encoder. Prior to version 1.21.0, a crafted HEIF that     exercises the overlay image item path triggers a heap buffer over-read in `HeifPixelImage::overlay()`. The     function computes a negative row length (likely from an unclipped overlay rectangle or invalid offsets),     which then underflows when converted to `size_t` and is passed to `memcpy`, causing a very large read past     the end of the source plane and a crash. Version 1.21.0 contains a patch. As a workaround, avoid decoding     images using `iovl` overlay boxes. (CVE-2025-68431)

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

ID	Name	Product	Family	Severity
296559	openSUSE 16 Security Update : libheif (openSUSE-SU-2026:20076-1)	Nessus	SuSE Local Security Checks	medium
296233	Amazon Linux 2023 : heif-pixbuf-loader, libheif, libheif-devel (ALAS2023-2026-1363)	Nessus	Amazon Linux Local Security Checks	medium
284665	Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.04 / 25.10 : libheif vulnerabilities (USN-7952-1)	Nessus	Ubuntu Local Security Checks	high
282542	SUSE SLED15 / SLES15 Security Update : libheif (SUSE-SU-2026:0087-1)	Nessus	SuSE Local Security Checks	medium
280130	Linux Distros Unpatched Vulnerability : CVE-2025-68431	Nessus	Misc.	medium

Detections

Analytics

CVE-2025-68431

medium

Tenable Plugins

medium

medium

high

medium

medium