When decoding an OpenEXR file that uses DWAA or DWAB compression, the specified raw length of run-length-encoded data is not checked when using it to calculate the output data.

We read rle_raw_size from the input file at [0], we decompress and decode into the buffer td->rle_raw_data of size rle_raw_size at [1], and then at [2] we will access entries in this buffer up to (td->xsize - 1) * (td->ysize - 1) + rle_raw_size / 2, which may exceed rle_raw_size.




We recommend upgrading to version 8.0 or beyond.
Advisories
Source ID Title
EUVD EUVD EUVD-2025-32516 When decoding an OpenEXR file that uses DWAA or DWAB compression, the specified raw length of run-length-encoded data is not checked when using it to calculate the output data. We read rle_raw_size from the input file at [0], we decompress and decode into the buffer td->rle_raw_data of size rle_raw_size at [1], and then at [2] we will access entries in this buffer up to (td->xsize - 1) * (td->ysize - 1) + rle_raw_size / 2, which may exceed rle_raw_size. We recommend upgrading to version 8.0 or beyond.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

References
History

Mon, 06 Oct 2025 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 06 Oct 2025 14:45:00 +0000

Type Values Removed Values Added
First Time appeared Ffmpeg
Ffmpeg ffmpeg
Vendors & Products Ffmpeg
Ffmpeg ffmpeg

Mon, 06 Oct 2025 08:15:00 +0000

Type Values Removed Values Added
Description When decoding an OpenEXR file that uses DWAA or DWAB compression, the specified raw length of run-length-encoded data is not checked when using it to calculate the output data. We read rle_raw_size from the input file at [0], we decompress and decode into the buffer td->rle_raw_data of size rle_raw_size at [1], and then at [2] we will access entries in this buffer up to (td->xsize - 1) * (td->ysize - 1) + rle_raw_size / 2, which may exceed rle_raw_size. We recommend upgrading to version 8.0 or beyond.
Title Heap-buffer-overflow write in FFmpeg EXR dwa_uncompress
Weaknesses CWE-787
References
Metrics cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:A/AC:H/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Google

Published:

Updated: 2025-10-06T16:20:25.169Z

Reserved: 2025-09-19T08:11:37.550Z

Link: CVE-2025-59731

cve-icon Vulnrichment

Updated: 2025-10-06T16:20:19.547Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-10-06T08:15:34.770

Modified: 2025-10-06T14:56:21.733

Link: CVE-2025-59731

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-10-06T14:39:51Z