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Vulnerability · Published Dec 12, 2025 · Assigned by GitHub_M

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

Medium 5.3

In plain English

A medium-severity out-of-bounds read in pcsx2 from PCSX2. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)5.3Medium
Exploit odds (30 days)0.3%top 71.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12pcsx2no fix listedDEBIAN-CVE-2025-67749
Debian:13pcsx2no fix listedDEBIAN-CVE-2025-67749
Debian:14pcsx22.4.0+dfsg-1DEBIAN-CVE-2025-67749
Ubuntu:22.04:LTSpcsx2no fix listedUBUNTU-CVE-2025-67749
Ubuntu:24.04:LTSpcsx2no fix listedUBUNTU-CVE-2025-67749
Ubuntu:25.10pcsx2no fix listedUBUNTU-CVE-2025-67749
Ubuntu:26.04:LTSpcsx2no fix listedUBUNTU-CVE-2025-67749
Ubuntu:26.10pcsx2no fix listedUBUNTU-CVE-2025-67749

Affected products (as reported)

VendorProductVersions
PCSX2 pcsx2 < 2.5.378

Weakness: CWE-125 · Vector: 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

References