CVE-2026-125230
FFmpeg through 9.0.2 Integer Overflow Division by Zero via pcm_rechunk Filter
Description
FFmpeg through 9.0.2 contains an integer overflow vulnerability in the pcm_rechunk bitstream filter that allows attackers to trigger division by zero via a crafted channel count. Attackers can supply a file declaring a huge channel count that is remuxed into MXF, GXF or DAUD, overflowing sample_size and crashing the application.
INFO
Published Date :
Nov. 9, 2026, 7:17 p.m.
Last Modified :
Nov. 9, 2026, 7:17 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update FFmpeg to a version newer than 9.0.2.
- Avoid processing untrusted files with affected FFmpeg versions.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-125230.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-125230 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-125230
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-125230 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-125230 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by [email protected]
Nov. 09, 2026
Action Type Old Value New Value Added Description FFmpeg through 9.0.2 contains an integer overflow vulnerability in the pcm_rechunk bitstream filter that allows attackers to trigger division by zero via a crafted channel count. Attackers can supply a file declaring a huge channel count that is remuxed into MXF, GXF or DAUD, overflowing sample_size and crashing the application. Added CVSS V4.0 AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Added CWE CWE-190 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/125xxx/CVE-2026-125230.json">CVE-2026-125230</a> Added Reference https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25569 Added Reference https://github.com/FFmpeg/FFmpeg Added Reference https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/bsf/pcm_rechunk.c#L49 Added Reference https://github.com/FFmpeg/FFmpeg/commit/11052ca4b01b021a135ec89ed7e86aa96dd3bf33 Added Reference https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-integer-overflow-division-by-zero-via-pcm-rechunk-filter