# CVE-2011-10023

## Summary

- **CVE ID:** CVE-2011-10023
- **Severity:** HIGH
- **CVSS Score:** 8.4 (CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N)
- **CWE:** CWE-121
- **Published:** Aug 20, 2025
- **Last Modified:** May 26, 2026

## Description

MJM QuickPlayer (likely now referred to as MJM Player) version 2010 contains a stack-based buffer overflow vulnerability triggered by opening a malicious .s3m music file. The flaw occurs due to improper bounds checking in the file parser, allowing an attacker to overwrite memory and execute arbitrary code. Exploitation is achieved via a crafted payload that bypasses DEP and ASLR protections using ROP techniques, and requires user interaction to open the file.

## Affected Products

- MJM Software — QuickPlayer (2010)

## References

- [CNA](https://mjm-software.com)
- [CNA](https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/fileformat/mjm_quickplayer_s3m.rb)
- [CNA](https://www.exploit-db.com/exploits/17229)
- [CNA](https://web.archive.org/web/20111016194042/https://www.corelan.be/index.php/forum/security-advisories/corelan-11-003-mjm-quickplayer-2-3-2010-stack-buffer-overflow-s3m/)
- [CNA](https://www.vulncheck.com/advisories/mjm-quickplayer-s3m-stack-based-buffer-overflow)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 8.15%
- **EPSS Percentile:** 92.0

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._