CVE-2025-9136

libretro RetroArch file_stream.c filestream_vscanf out-of-bounds

State: Published
Severity: 4.8 Medium
Published: Aug 19, 2025
Updated: Aug 19, 2025
Reserved: Aug 19, 2025

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	4.8 Medium	CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X	VulDB
3.1	5.3 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C	VulDB
3.0	5.3 Medium	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C	VulDB
2.0	4.3 Medium	AV:L/AC:L/Au:S/C:P/I:P/A:P/E:ND/RL:OF/RC:C	VulDB

Weaknesses

CWE-125 Out-of-Bounds Read
CWE-119 Memory Corruption

Affected Products

Product	Versions
RetroArchlibretro	1.18.0Affected 1.19.0Affected 1.20.0Affected 1.21.0Not affected

References

VDB-320516 | libretro RetroArch file_stream.c filestream_vscanf out-of-boundsvdb-entrytechnical-description
VDB-320516 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
Submit #617657 | libretro RetroArch v1.20.0/v1.19.0/v1.18.0 Out-of-Bounds Readthird-party-advisory
https://github.com/libretro/RetroArch/pull/17555issue-tracking
https://github.com/libretro/RetroArch/pull/17555#issuecomment-2651403849issue-tracking
https://github.com/libretro/RetroArch/pull/17555/commits/6446f045ec7fc6a5cac3e8ec35a2f0a5889c88e8issue-trackingpatch
https://github.com/libretro/RetroArch/releases/tag/v1.21.0patch

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