CVE-2026-47178 libheif has Heap Out Of Bounds Write in unci subsystem

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.19.0 through 1.21.2, a crafted HEIF file uncompressed unci codec, tiled, component-interleaved, 4:2:0 triggers a heap out-of-bounds write in libheif's uncompressed tile decoder. The write overwrites the C++ vtable pointer o...

CVE-2026-49271

A flaw was found in libheif, a decoder and encoder for HEIF and AVIF file formats. A remote attacker could exploit this vulnerability by providing a specially crafted HEIF file. The uncompressed HEIF decoder's validation of icef compressed-unit offsets can experience an integer wrap-around. This...

Ubuntu 25.10 / 26.04 LTS : libheif vulnerabilities (USN-8479-1)

The remote Ubuntu 25.10 / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8479-1 advisory. It was discovered that libheif incorrectly handled certain crafted HEIF files. An attacker could possibly use this issue to cause a denial of...

USN-8479-1 libheif vulnerabilities

It was discovered that libheif incorrectly handled certain crafted HEIF files. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. CVE-2026-47178 It was discovered that libheif incorrectly validated offsets when decoding certain crafted HEIF files. An...

Out-of-bounds Read

Overview Affected versions of this package are vulnerable to Out-of-bounds Read in the uncompressed HEIF decoder process. An attacker can cause a crash by supplying a crafted HEIF file that manipulates compressed-unit offsets to trigger an out-of-bounds heap read. Remediation A fix was pushed int...

Libheif 1.19.x < 1.23.0 DoS (macOS)

According to its self-reported version, libheif on the remote host is affected by a denial of service vulnerability. A crafted HEIF sequence file can cause libheif to perform unbounded heap allocation due to a missing bound check in the stsz fixed-size mode of the HEIF sequence parser, leading to...

CVE-2026-41071

A flaw was found in libheif, a library for decoding and encoding HEIF High Efficiency Image File Format and AVIF files. A remote attacker could exploit this vulnerability by providing a specially crafted HEIF sequence file. When parsing the file, if the saiz sample auxiliary information box...

CVE-2026-41071 libheif: Heap buffer over-read in SampleAuxInfoReader via crafted HEIF sequence file with mismatched saiz sample count

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and prior, a crafted HEIF sequence file where the saiz box declares more samples than actually exist in the track's chunk table causes a heap-buffer-overflow out-of-bounds read in the SampleAuxInfoReader constructor. T...

CVE-2026-41071

CVE-2026-41071 affects libheif up to version 1.21.2. A crafted HEIF sequence file where the saiz box declares more samples than actually exist can trigger a heap‑buffer‑overflow (out‑of‑bounds read) in the SampleAuxInfoReader constructor when parsing via heif_context_read_from_file. The reader it...

EUVD-2026-31501

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and prior, a crafted HEIF sequence file where the saiz box declares more samples than actually exist in the track's chunk table causes a heap-buffer-overflow out-of-bounds read in the SampleAuxInfoReader constructor. T...

CVE-2026-41071 libheif: Heap buffer over-read in SampleAuxInfoReader via crafted HEIF sequence file with mismatched saiz sample count

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and prior, a crafted HEIF sequence file where the saiz box declares more samples than actually exist in the track's chunk table causes a heap-buffer-overflow out-of-bounds read in the SampleAuxInfoReader constructor. T...

Linux Distros Unpatched Vulnerability : CVE-2026-32738

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and below, a crafted 792-byte HEIF sequence file with samplesperchunk=0 in the st...

CVE-2026-32738

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and below, a crafted 792-byte HEIF sequence file with samplesperchunk=0 in the stsc box causes an unsigned integer underflow in the Chunk constructor mlastsample = 0 + 0 - 1 = UINT32MAX, mapping all samples to an empty...

PT-2026-41995

Name of the Vulnerable Software and Affected Versions libheif versions prior to 1.22.0 Description An unsigned integer underflow occurs in the Chunk constructor when processing a crafted HEIF sequence file containing samples per chunk=0 in the stsc box. This causes all samples to map to an empty...

SUSE-SU-2026:0377-1 Security update for libheif

This update for libheif fixes the following issues: - CVE-2025-68431: Fixed heap buffer over-read in HeifPixelImage::overlay via crafted HEIF that exercises the overlay image item bsc1255735...

openSUSE 16 Security Update : libheif (openSUSE-SU-2026:20076-1)

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 bsc1255735. Tenable...

OPENSUSE-SU-2026:20076-1 Security update for libheif

This update for libheif fixes the following issues: - CVE-2025-68431: heap buffer over-read in HeifPixelImage::overlay via crafted HEIF file that exercises the overlay image item path bsc1255735...

SUSE-SU-2026:20121-1 Security update for libheif

This update for libheif fixes the following issues: - CVE-2025-68431: heap buffer over-read in HeifPixelImage::overlay via crafted HEIF file that exercises the overlay image item path bsc1255735...

Libheif uncompressed codec lacks bounds check leading to application crash

Overview An out-of-bounds memory access vulnerability exists in the uncompressed decoder component of libheif. A maliciously crafted HEIF image can trigger a denial-of-service condition by causing the libheif library to crash or exhibit other unexpected behavior due to an out-of-bounds memory...

SUSE-SU-2026:0087-1 Security update for libheif

This update for libheif fixes the following issues: - CVE-2025-68431: Fixed heap buffer over-read in HeifPixelImage::overlay via crafted HEIF that exercises the overlay image item bsc1255735...