CVE-2025-9136: Libretro Retroarch

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

A flaw has been found in libretro RetroArch 1.18.0/1.19.0/1.20.0. This affects the function filestream_vscanf of the file libretro-common/streams/file_stream.c. This manipulation causes out-of-bounds read. The attack needs to be launched locally. Upgrading to version 1.21.0 mitigates this issue. It is recommended to upgrade the affected component.

Affected products

• Libretro Retroarch: version 1.18.0 only; version 1.19.0 only; version 1.20.0 only

Published 2025-08-19. Last modified 2026-06-17.