cvedb.io
CVE-2025-62821
CRITICAL · CVSS 9.1
EPSS exploitation probability: 0%
Published 2026-06-19T14:16:21.570 · Last modified 2026-06-30T18:49:08.220

Summary

Microsoft HEIF Image Extensions 1.2.22.0 has an out-of-bounds read because CHEIFItemInfoEntry_GetDataSize can return success while leaving the reported data size as 0. This causes a caller to make a 1-byte allocation. Later, CopyPixels computes copy_size = stride * abs(roi_height) but does not check the source buffer length before a memmove call.

Affected products

microsoft — heif_image_extension

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.