Out-of-bounds Write Vulnerability in libretro-common by Libretro
CVE-2025-9809

8.4HIGH

Key Information:

Vendor

Libretro

Status
Libretro-common
Vendor
CVE Published:
1 September 2025

What is CVE-2025-9809?

The libretro-common library from Libretro is vulnerable to an out-of-bounds write due to improper handling of .cue files. Attackers can exploit this vulnerability by crafting malicious .cue files that contain file paths exceeding the defined PATH_MAX_LENGTH. When such a file is processed, the library uses memcpy to copy the path into a fixed-size buffer, potentially allowing remote attackers to execute arbitrary code on the affected system. This vulnerability affects the latest version of libretro-common on all platforms.

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Affected Version(s)

libretro-common 0

References

https://github.com/libretro/libretro-common/blob/master/f...
https://github.com/libretro/libretro-common/issues/222

CVSS V4

Score:
8.4
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Simcha Kosman
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