CVE-2026-6385: Integer Overflow or Wraparound in Red Hat Lightspeed Core
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.
AI Analysis
Technical Summary
This vulnerability arises from a signed integer overflow in the DVD subtitle parser's fragment reassembly bounds checks within FFmpeg, used by Red Hat Lightspeed Core. A remote attacker can exploit this by supplying a maliciously crafted MPEG-PS/VOB media file containing a DVD subtitle stream designed to trigger the overflow. The resulting heap out-of-bounds write can cause the application to crash, leading to denial of service, and may allow arbitrary code execution. The CVSS 3.1 base score is 6.5 (medium severity), with network attack vector, low attack complexity, no privileges required, user interaction required, and impact limited to availability.
Potential Impact
Successful exploitation can cause a denial of service due to application crash and may potentially allow arbitrary code execution on the affected system. The vulnerability does not impact confidentiality or integrity directly but affects availability and possibly system control.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://access.redhat.com/security/cve/CVE-2026-6385 for current remediation guidance. No official fix or temporary workaround has been published as of now. Users should monitor the vendor advisory for updates and apply patches once available.
CVE-2026-6385: Integer Overflow or Wraparound in Red Hat Lightspeed Core
Description
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability arises from a signed integer overflow in the DVD subtitle parser's fragment reassembly bounds checks within FFmpeg, used by Red Hat Lightspeed Core. A remote attacker can exploit this by supplying a maliciously crafted MPEG-PS/VOB media file containing a DVD subtitle stream designed to trigger the overflow. The resulting heap out-of-bounds write can cause the application to crash, leading to denial of service, and may allow arbitrary code execution. The CVSS 3.1 base score is 6.5 (medium severity), with network attack vector, low attack complexity, no privileges required, user interaction required, and impact limited to availability.
Potential Impact
Successful exploitation can cause a denial of service due to application crash and may potentially allow arbitrary code execution on the affected system. The vulnerability does not impact confidentiality or integrity directly but affects availability and possibly system control.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://access.redhat.com/security/cve/CVE-2026-6385 for current remediation guidance. No official fix or temporary workaround has been published as of now. Users should monitor the vendor advisory for updates and apply patches once available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- redhat
- Date Reserved
- 2026-04-15T19:11:41.901Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-6385","vendor":"Red Hat"}]
Threat ID: 69dfe7c182d89c981f913eff
Added to database: 4/15/2026, 7:32:17 PM
Last enriched: 4/15/2026, 7:47:02 PM
Last updated: 4/15/2026, 8:55:27 PM
Views: 4
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