CVE-2025-59728 Details
Description
When calculating the content path in handling of MPEG-DASH manifests, there's an out-of-bounds NUL-byte write one byte past the end of the buffer.When we call xmlNodeGetContent below [0], it returns a buffer precisely allocated to match the string length, using strdup internally. If this buffer is not an empty string, it is assigned to root_url at [1].If the last (non-NUL) byte in this buffer is not '/' then we append '/' in-place at [2]. This will write two bytes into the buffer, starting at the last valid byte in the buffer, writing the NUL byte beyond the end of the allocated buffer. We recommend upgrading to version 8.0 or beyond.
A heap-buffer-overflow vulnerability has been identified in FFmpeg's handling of MPEG-DASH manifests. This issue arises when the software calculates the content path, leading to an out-of-bounds NUL-byte write one byte past the end of the allocated buffer. The vulnerability is present in FFmpeg versions through 7.1.1 and has been verified in the latest release at the time of reporting. The root cause lies in the improper management of buffer lengths when appending characters, specifically when a base URL does not end with a trailing slash. The flaw can be exploited by crafting a DASH manifest that includes a BaseURL element without a trailing slash, which, when processed by FFmpeg, triggers the out-of-bounds write.
Users are advised to upgrade to FFmpeg version 8.0 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 6, 2025CISA-ADP
Assessed Oct 8, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://issuetracker.google.com/433502298 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-787 | Out-of-bounds Write | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| FFmpeg | 7.1.1 (semver) |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Oct 6, 2025 | New CVE Received | [email protected] |