CVE-2026-84449: libheif is a HEIF and AVIF file format decoder and encoder. Prior to 1.19.6, Op_RGB24_32_to_YCbCr::convert_colorspace() stores image-plane strides in an integer width that can overflow for extremely large RGB images crea
What it means
NIST National Vulnerability Database ha pubblicato CVE-2026-84449. La rilevanza va confermata rispetto alle tecnologie effettivamente in uso.
Why it matters
Il segnale diventa operativo solo se prodotto, versione o servizio sono presenti nel perimetro.
Recommended actions
- Confermare l'applicabilita consultando la fonte ufficiale e l'inventario asset.
- Pianificare mitigazione o aggiornamento secondo criticita e rischio di interruzione.
Translation in progress
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Text acquired from the source
libheif is a HEIF and AVIF file format decoder and encoder. Prior to 1.19.6, Op_RGB24_32_to_YCbCr::convert_colorspace() stores image-plane strides in an integer width that can overflow for extremely large RGB images created through heif_image_create() and heif_image_add_plane(). The resulting wrapped stride causes the conversion loop in libheif/color-conversion/rgb2yuv.cc to compute an invalid input pointer and read beyond the allocated interleaved plane while heif_context_encode_image() performs RGB-to-YCbCr conversion. This can crash the encoding process. This issue is fixed in version 1.19.6.
- Source
- NIST National Vulnerability Database
- Publishing entity
- NIST National Vulnerability Database
- Entity type
- National authority
- Area
- North America · US
- Original language
- en · translation in preparation
- Publication
- 18/09/2026 18:17
- CVE
- CVE-2026-84449
- Classification
- Low
- Stated country
- US
Affected products and versions
The official sources queried do not yet expose a list of affected versions. No automatic inference is made.