CVE-2026-38347CWE-122

CVE-2026-38347

High · published August 28, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
38.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00458 · 38.7th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2026-08-28T04:17Z
References (1)
https://trac.ffmpeg.org/ticket/11692 · [email protected]
EPSS history
Timeline
  • 01 SEP 03:29Z
    EPSS moved — → 0%
    epss
  • 27 AUG 00:00Z
    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…
    cvelistv5