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CVE-2025-59730

Good to know:

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Date: October 6, 2025

When decoding a frame for a SANM file (ANIM v0 variant), the decoded data can be larger than the buffer allocated for it. Frames encoded with codec 48 can specify their resolution (width x height). A buffer of appropriate size is allocated depending on the resolution. This codec can encode the frame contents using a run-length encoding algorithm. There are no checks that the decoded frame fits in the allocated buffer, leading to a heap-buffer-overflow. process_frame_obj initializes the buffers based on the frame resolution: We recommend upgrading to version 8.0 or beyond.

Severity Score

Severity Score

Weakness Type (CWE)

Out-of-bounds Write

CWE-787

Top Fix

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Upgrade Version

Upgrade to version https://github.com/FFmpeg/FFmpeg.git - n8.0

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CVSS v3.1

Base Score:
Attack Vector (AV): ADJACENT_NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): LOW
User Interaction (UI): REQUIRED
Scope (S): CHANGED
Confidentiality (C): LOW
Integrity (I): HIGH
Availability (A): NONE

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