PatchTheCVECVE-2026-107677: FFmpeg through 9.0.2 contains a denial of service vulnerability in the DASH demuxer that allows attackers to t
CVE-2026-107677 is a medium-severity flaw (CVSS 4.7) affecting ffmpeg. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
FFmpeg through 9.0.2 contains a denial of service vulnerability in the DASH demuxer that allows attackers to trigger an infinite loop by supplying an empty SegmentTemplate media URL. Attackers can craft an .mpd manifest declaring SegmentTemplate media="" so get_current_fragment() calls av_strireplace() with an empty search string, consuming CPU indefinitely.
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 4.7 (Medium) |
| Attack vector | Local |
| Attack complexity | High |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 0.1% (top 97%) |
| CISA exploited list | No |
| Weakness | CWE-835 |
| Published | 2026-10-08 |
| Last modified | 2026-10-14 |
Last updated 2026-10-14 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-107677?
ffmpeg: upgrade to newer than 9.0.2. Exact commands for each OS are on this page.
Is CVE-2026-107677 being exploited?
CVE-2026-107677 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-107677 affect?
CVE-2026-107677 affects ffmpeg. Severity is medium (CVSS 4.7). FFmpeg through 9.0.2 contains a denial of service vulnerability in the DASH demuxer that allows attackers to trigger an infinite loop by supplying an empty SegmentTemplate media URL. Attackers can craft an .mpd manifest declaring SegmentTem
How urgent is CVE-2026-107677?
Priority 17/100. No elevated risk signals yet.
Software pages
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