Heap corruption via undersized content-path buffer
Published Oct 6, 2025 · Updated Oct 6, 2025
Out-of-bounds write in FFmpeg MPEG-DASH handling before 8.0 allows attackers to corrupt heap memory via a crafted manifest. The content-path logic stores an exactly sized xmlNodeGetContent buffer in root_url, then appends a slash and terminator without reallocating it. Reaching the flaw requires low privileges and adjacent access; the one-byte overwrite corrupts memory beyond the allocated heap buffer.
Summary
What happened
Out-of-bounds write in FFmpeg MPEG-DASH handling before 8.0 allows attackers to corrupt heap memory via a crafted manifest. The content-path logic stores an exactly sized xmlNodeGetContent buffer in root_url, then appends a slash and terminator without reallocating it. Reaching the flaw requires low privileges and adjacent access; the one-byte overwrite corrupts memory beyond the allocated heap buffer.
The record
- CVE
- CVE-2025-59728
- Published
- Oct 6, 2025
- Updated
- Oct 6, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-787
- Attack vector
- adjacent
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 6, 2025CVE publishedPublication date reported by the CVE source.
- Oct 6, 2025Record updatedLatest update available in the CVE record.
Exploitability
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Attacks
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