Description
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.
References (3)
Core 3
Core References
Vendor Advisory x_refsource_confirm
https://github.com/PCSX2/pcsx2/security/advisories/GHSA-69wg-97fx-8j5w
Patch x_refsource_misc
https://github.com/PCSX2/pcsx2/commit/0b73eabd9ac19a5e290e7bee48d15be24e7b7d1b
Release Notes x_refsource_misc
https://github.com/PCSX2/pcsx2/releases/tag/v2.5.378
Scores
CVSS v4
5.3
EPSS
0.0008
EPSS Percentile
22.8%
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-125
Status
published
Products (1)
PCSX2/pcsx2
< 2.5.378
Published
Dec 12, 2025
Tracked Since
Feb 18, 2026