CVE-2026-120208
7.5 HIGHpublic exploit availablePublished 2026-10-31 · Updated 2026-10-31
AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.
NVD description
libheif 1.18.0 before 1.23.3 contains a heap-based buffer overflow vulnerability in unc_decoder_mixed_interleave::processTile() that allows attackers to write out of bounds by supplying chroma components with unequal bit depths. Attackers can craft a HEIF file declaring, for example, 16-bit Cb and 8-bit Cr to trigger file-controlled heap writes past the Cr plane, potentially achieving code execution in image-processing pipelines.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Weaknesses
CWE-122
Public exploit & PoC references
- https://github.com/strukturag/libheif/blob/v1.23.2/libheif/codecs/uncompressed/unc_decoder_mixed_interleave.cc#L95
- https://github.com/strukturag/libheif/commit/9d3cd91d7b1c8c68deef6d06057ab956bcb0dfb9
- https://github.com/strukturag/libheif/releases/tag/v1.23.3
- https://github.com/strukturag/libheif/security/advisories/GHSA-x8r2-mggj-j6wr
All references
- https://github.com/strukturag/libheif/blob/v1.23.2/libheif/codecs/uncompressed/unc_decoder_mixed_interleave.cc#L95
- https://github.com/strukturag/libheif/commit/9d3cd91d7b1c8c68deef6d06057ab956bcb0dfb9
- https://github.com/strukturag/libheif/releases/tag/v1.23.3
- https://github.com/strukturag/libheif/security/advisories/GHSA-x8r2-mggj-j6wr
- https://www.vulncheck.com/advisories/libheif-1.18.0-before-1.23.3-heap-buffer-overflow-via-unci-mixed-interleave-decoder
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
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