CVE-2025-67749
MediumCVSS 5.3Exploitation Probability (EPSS)
Low risk26th percentile - higher than 26% of all known CVEs
Summary
PCSX2 versions 2.5.377 and below use an unchecked offset and size in a memcpy operation within the CDVD SCMD 0x91 and SCMD 0x8F handlers. A specially crafted disc image or ELF can cause an out-of-bounds read from emulator memory, with data reflected back into emulated memory. This is fixed in version 2.5.378.
Risk Assessment
A local attacker can exploit this to read data beyond the mg_buffer bounds, potentially leaking information from emulator memory. Environments running untrusted disc images or ELF files in PCSX2 face a real data exposure risk.
Recommendation
Update PCSX2 to version 2.5.378 or later. Avoid running untrusted disc images and ELF files on vulnerable emulator versions.
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Original NVD description (English source)
PCSX2 is a free and open-source PlayStation 2 (PS2) emulator. In versions 2.5.377 and below, an unchecked offset and size used in a memcpy operation inside PCSX2's CDVD SCMD 0x91 and SCMD 0x8F handlers allow a specially crafted disc image or ELF to cause an out-of-bounds read from emulator memory. Because the offset and size is controlled through MG header fields, a specially crafted ELF can read data beyond the bounds of mg_buffer and have it reflected back into emulated memory. This issue is fixed in version 2.5.378.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

