libheif before 1.19.6 has a NULL pointer dereference in ImageItem_Grid::get_decoder in image-items/grid.cc because a grid image can reference a nonexistent image item.
CVE ID: CVE-2025-43967
CVSS Base Severity: LOW
CVSS Base Score: 2.9
CVSS Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Vendor: struktur
Product: libheif
EPSS Score: 0.03% (probability of being exploited)
EPSS Percentile: 8.02% (scored less or equal to compared to others)
EPSS Date: 2025-05-19 (when was this score calculated)