Denial of Service Vulnerability in FFmpeg by an Integer Overflow Issue
CVE-2026-38349

7.5HIGH

Key Information:

Vendor

FFmpeg

Status
FFmpeg
Vendor
CVE Published:
27 August 2026

What is CVE-2026-38349?

An integer overflow flaw in the hScale16To19_c() function within FFmpeg's libswscale/output.c file can be exploited by providing a maliciously crafted image file. If successful, this could result in a Denial of Service (DoS) condition, allowing attackers to disrupt the functioning of applications reliant on FFmpeg for media processing.

References

https://code.ffmpeg.org/FFmpeg/FFmpeg/issues/21592

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.