CVE-2025-67749 PCSX2 has an Out-of-bounds Read due to unchecked offset and size passed to memcpy
A specially crafted disc image or ELF can cause an out-of-bounds read in PCSX2, allowing attackers to read data from emulator memory.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2025-67749?
CVE-2025-67749 is a medium-severity memory corruption vulnerability in pcsx2, published on 12 Dec 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
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.
Weakness: CWE-125
Which versions are affected by CVE-2025-67749?
How do I fix CVE-2025-67749?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-67749 being exploited?
There is no known exploitation of CVE-2025-67749 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2025-67749, GHSA-69wg-97fx-8j5w, UBUNTU-CVE-2025-67749.