CVE-2026-6385: Red Hat Lightspeed Core

Medium severity, CVSS 6.5. EPSS: 0.6% chance of exploitation in the next 30 days.

A flaw was found in FFmpeg. A remote attacker could exploit this vulnerability by providing a specially crafted MPEG-PS/VOB media file containing a malicious DVD subtitle stream. This vulnerability is caused by a signed integer overflow in the DVD subtitle parser's fragment reassembly bounds checks, leading to a heap out-of-bounds write. Successful exploitation can result in a denial of service (DoS) due to an application crash, and potentially lead to arbitrary code execution.

Affected products

• Red Hat Lightspeed Core
• Red Hat Red Hat Ai Inference Server
• Red Hat Red Hat Enterprise Linux Ai Rhel Ai 3
• Red Hat Red Hat Openshift Ai Rhoai

Published 2026-04-15. Last modified 2026-06-17.