What’s Vulnerable › Vulnerabilities

CVE-2025-67749: PCSX2 has an Out-of-bounds Read due to unchecked offset and size passed to memcpy

• Severity: medium (CVSS 5.3 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-12 · updated 2026-10-14
• Weakness: CWE-125

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.

Affected products

• pcsx2: before 2.5.378

References

• https://github.com/PCSX2/pcsx2/commit/0b73eabd9ac19a5e290e7bee48d15be24e7b7d1b
• https://github.com/PCSX2/pcsx2/releases/tag/v2.5.378
• https://github.com/PCSX2/pcsx2/security/advisories/GHSA-69wg-97fx-8j5w

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