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CVE-2025-9136— libretro RetroArch file_stream.c filestream_vscanf out-of-bounds

Quick assessment

Affected
libretro RetroArch
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

RetroArch是Libretro开源的一个 Libretro API 的参考前端。 RetroArch 1.18.0版本、1.19.0版本和1.20.0版本存在安全漏洞，该漏洞源于filestream_vscanf函数存在越界读取，可能导致本地攻击。

CVSS 5.3 · Medium EPSS 0.20% · P9

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2025-9136

Vulnerability Information
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Vulnerability Title
libretro RetroArch file_stream.c filestream_vscanf out-of-bounds
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
RetroArch 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
RetroArch是Libretro开源的一个 Libretro API 的参考前端。 RetroArch 1.18.0版本、1.19.0版本和1.20.0版本存在安全漏洞，该漏洞源于filestream_vscanf函数存在越界读取，可能导致本地攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
libretro RetroArch 1.18.0 -

II. Public POCs for CVE-2025-9136

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III. Intelligence Information for CVE-2025-9136

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IV. Related Vulnerabilities

Same product: RetroArch
Same vendor: libretro
Same weakness: CWE-125

V. Comments for CVE-2025-9136

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