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CVE-2025-57807

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Date: September 5, 2025

ImageMagick is free and open-source software used for editing and manipulating digital images. ImageMagick versions lower than 14.8.2 include insecure functions: SeekBlob(), which permits advancing the stream offset beyond the current end without increasing capacity, and WriteBlob(), which then expands by quantum + length (amortized) instead of offset + length, and copies to data + offset. When offset ≫ extent, the copy targets memory beyond the allocation, producing a deterministic heap write on 64-bit builds. No 2⁶⁴ arithmetic wrap, external delegates, or policy settings are required. This is fixed in version 14.8.2.

Severity Score

Severity Score

Weakness Type (CWE)

Out-of-bounds Write

CWE-787

Heap-based Buffer Overflow

CWE-122

Incorrect Calculation of Buffer Size

CWE-131

Top Fix

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Upgrade Version

Upgrade to version Magick.NET-Q16-x64 - 14.8.2;Magick.NET-Q8-x64 - 14.8.2;Magick.NET-Q16-HDRI-x64 - 14.8.2;Magick.NET-Q8-OpenMP-x64 - 14.8.2;Magick.NET-Q16-HDRI-OpenMP-x64 - 14.8.2;Magick.NET-Q16-OpenMP-x64 - 14.8.2;Magick.NET-Q8-arm64 - 14.8.2;Magick.NET-Q16-arm64 - 14.8.2;Magick.NET-Q16-OpenMP-arm64 - 14.8.2;Magick.NET-Q8-OpenMP-arm64 - 14.8.2;Magick.NET-Q16-HDRI-OpenMP-arm64 - 14.8.2;Magick.NET-Q16-HDRI-arm64 - 14.8.2

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): HIGH
Privileges Required (PR): HIGH
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): LOW

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