# CVE-2010-20123

## Summary

- **CVE ID:** CVE-2010-20123
- **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 21, 2025
- **Last Modified:** May 15, 2026

## Description

Steinberg MyMP3Player version 3.0 (build 3.0.0.67) is vulnerable to a stack-based buffer overflow when parsing .m3u playlist files. The application fails to properly validate the length of input data within the playlist, allowing a specially crafted file to overwrite critical memory structures and execute arbitrary code. This vulnerability can be exploited locally by convincing a user to open a malicious .m3u file.

## Affected Products

- Steinberg — MyMP3Player (*)
- Steinberg — MyMP3Player (0)

## References

- [CNA](https://www.exploit-db.com/exploits/11791)
- [CNA](https://www.exploit-db.com/exploits/16633)
- [CNA](https://www.exploit-db.com/exploits/14581)
- [CNA](https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/fileformat/mymp3player_m3u.rb)
- [CNA](https://www.fortiguard.com/encyclopedia/ips/20813/steinberg-mymp3player-buffer-overflow)
- [CNA](https://www.chip.de/downloads/myMP3-Player_13008621.html)
- [CNA](https://www.vulncheck.com/advisories/steinburg-mymp3player-buffer-overflow)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.34%
- **EPSS Percentile:** 27.9

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