Microsoft HEIF Image Extensions 1.2.22.0 CHEIFItemInfoEntry_GetDataSize out-of-bounds

Summaryinfo

A vulnerability labeled as problematic has been found in Microsoft HEIF Image Extensions 1.2.22.0. This issue affects the function CHEIFItemInfoEntry_GetDataSize. The manipulation results in out-of-bounds. This vulnerability is cataloged as CVE-2025-62821. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Microsoft HEIF Image Extensions 1.2.22.0. It has been classified as problematic. Affected is the function CHEIFItemInfoEntry_GetDataSize. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is traded as CVE-2025-62821 since 10/23/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 06/19/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-210287). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• Microsoft

Name

• HEIF Image Extensions

Version

• 1.2.22.0

License

• commercial

Website

• Vendor: https://www.microsoft.com/

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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