Threats Tagged 'cve-2026-32740'
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Threats Tagged 'cve-2026-32740'
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libheif is a HEIF and AVIF file format decoder and encoder. Versions 1.21.2 and prior contain a heap-buffer-overflow (write) vulnerability in the grid tile compositing, allowing an attacker to write 64 bytes of fully attacker-controlled data past the end of a chroma plane heap allocation by crafting a HEIF/AVIF file with a 1×4 grid of odd-height tiles. The overflow is triggered during normal image decoding with default build configuration. The written bytes are chroma (Cb/Cr) pixel values from the attacking tile, giving the attacker full control over the overflow content. This issue has been fixed in version 1.22.0. Join the discussion | CVE Database V5 | 05/19/2026, 19:22:07 UTC Added: 05/20/2026, 14:19:19 UTC |
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