PT-2026-50877
CVE-2025-62821
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Published
2026-06-19
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Updated
2026-10-12
Description by
CVSS 3.1
9.1
CriticalMetricsAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Name of the Vulnerable Software and Affected Versions
Microsoft HEIF Image Extensions version 1.2.22.0
Description
An out-of-bounds read occurs because the
CHEIFItemInfoEntry GetDataSize() function can return a success status while leaving the reported data size at 0. This leads a caller to perform a 1-byte allocation. Subsequently, the CopyPixels() function calculates copy size using the formula stride * abs(roi height) but fails to verify the source buffer length before executing a memmove call.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
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