An integer overflow in the hScale16To19_c() function (libswscale/output.c) of FFmpeg N-122528-gdd2976b9e1 allows attackers to cause a Denial of… (CVE-2026-38349)
Description
An integer overflow vulnerability exists in the hScale16To19_c() function within libswscale/output.c of FFmpeg N-122528-gdd2976b9e1. This flaw allows an attacker to cause a Denial of Service (DoS) by supplying a specially crafted image file. The vulnerability has a high severity rating with a CVSS score of 7.5. No patch or remediation information is currently provided. There are no known exploits in the wild at this time.
CVSS v3.1
Score 7.5high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-38349 is an integer overflow vulnerability in the hScale16To19_c() function of FFmpeg's libswscale/output.c component. The flaw can be triggered by processing a crafted image file, leading to a Denial of Service condition. The vulnerability is categorized under CWE-190 (Integer Overflow or Wraparound). The CVSS 3.1 vector indicates it is remotely exploitable without privileges or user interaction, impacting availability only.
Potential Impact
Successful exploitation results in a Denial of Service (DoS) condition, causing the affected FFmpeg process to crash or become unresponsive. There is no indication of confidentiality or integrity impact. No active exploitation has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid processing untrusted or malformed image files with the affected FFmpeg version.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-4f39-h9cc-q7g2
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-38349"]
- State
- PUBLISHED
Threat ID: 6a91a7e6acd9273b49065a50
Added to database: 08/28/2026, 15:23:18 UTC
Last enriched: 09/08/2026, 05:52:21 UTC
Last updated: 10/12/2026, 18:48:19 UTC
Views: 59
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