# CVE-2010-20042

## Summary

- **CVE ID:** CVE-2010-20042
- **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:** Jul 15, 2026

## Description

Xion Audio Player versions prior to 1.0.126 are vulnerable to a Unicode-based stack buffer overflow triggered by opening a specially crafted .m3u playlist file. The file contains an overly long string that overwrites the Structured Exception Handler (SEH) chain, allowing an attacker to hijack execution flow and run arbitrary code.

## Affected Products

- Xion — Audio Player (*)
- Xion — Audio Player (0)

## References

- [CNA](https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/fileformat/xion_m3u_sehbof.rb)
- [CNA](https://www.exploit-db.com/exploits/14517)
- [CNA](https://www.exploit-db.com/exploits/14633)
- [CNA](https://www.exploit-db.com/exploits/15598)
- [CNA](https://www.exploit-db.com/exploits/16653)
- [CNA](https://www.r2.com.au/page/products/download/xion-audio-player/)
- [CNA](https://www.vulncheck.com/advisories/xion-audio-player-unicode-stack-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._