CVE-2025-59732— Heap-buffer-overflow write in FFmpeg EXR dwa_uncompress
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I. Basic Information for CVE-2025-59732
Vulnerability Information
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Vulnerability Title
Heap-buffer-overflow write in FFmpeg EXR dwa_uncompress
Source: NVD (National Vulnerability Database)
Vulnerability Description
When decoding an OpenEXR file that uses DWAA or DWAB compression, there's an implicit assumption that the height and width are divisible by 8. If the height or width of the image is not divisible by 8, the copy loops at [0] and [1] will continue to write until the next multiple of 8. The buffer td->uncompressed_data is allocated in decode_block based on the precise height and width of the image, so the "rounded-up" multiple of 8 in the copy loop can exceed the buffer bounds, and the write block starting at [2] can corrupt following heap memory. We recommend upgrading to version 8.0 or beyond.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存写
Source: NVD (National Vulnerability Database)
Vulnerability Title
OpenEXR 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenEXR是Academy Software Foundation开源的一种高动态范围图像（HDR）文件格式的开放标准。 OpenEXR 8.0之前版本存在安全漏洞，该漏洞源于解码DWAA或DWAB压缩文件时未验证图像高度和宽度是否可被8整除，可能导致堆内存损坏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2025-59732
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Same Patch Batch · FFmpeg · 2025-10-06 · 7 CVEs total
| CVE-2025-59733 | Heap-buffer-overflow write in FFmpeg EXR dwa_uncompress | |
| CVE-2025-59734 | Heap-buffer-overflow write in FFmpeg SANM process_ftch | |
| CVE-2025-59728 | Heap-buffer-overflow write in FFmpeg MDASH resolve_content_path | |
| CVE-2025-59731 | Heap-buffer-overflow write in FFmpeg EXR dwa_uncompress | |
| CVE-2025-59730 | Heap-buffer-overflow write in FFmpeg SANM decoding due to lack of bounds-checking in old_c | |
| CVE-2025-59729 | Heap-buffer-overflow read in FFmpeg DHAV get_duration |
IV. Related Vulnerabilities
Same product: FFmpeg
- CVE-2026-40962
FFmpeg 安全漏洞 - CVE-2025-59734
Heap-buffer-overflow write in FFmpeg SANM process_ftch - CVE-2025-59733
Heap-buffer-overflow write in FFmpeg EXR dwa_uncompress - CVE-2025-59731
Heap-buffer-overflow write in FFmpeg EXR dwa_uncompress - CVE-2025-59730
Heap-buffer-overflow write in FFmpeg SANM decoding due to la
Same vendor: FFmpeg
- CVE-2026-40962
FFmpeg 安全漏洞 - CVE-2025-59734
Heap-buffer-overflow write in FFmpeg SANM process_ftch - CVE-2025-59733
Heap-buffer-overflow write in FFmpeg EXR dwa_uncompress - CVE-2025-59731
Heap-buffer-overflow write in FFmpeg EXR dwa_uncompress - CVE-2025-59730
Heap-buffer-overflow write in FFmpeg SANM decoding due to la
V. Comments for CVE-2025-59732
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