CVE-2026-38347
High
Description
A heap overflow in the ff_sws_alphablendaway function (libswscale/alphablend.c) of FFmpeg git-master commit 722a217 allows attackers to cause a Denial of Service (DoS) via a crafted input.
SeverityHigh
CVSS7.5
Exploit probability—
ProductFFmpeg
PublishedAug 28, 2026
First seenAug 28, 2026
Weakness typeCWE-122CWE-122
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| FFmpeg | git-master commit 722a217 | — |
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