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Fencer Intel
high 8.4

CVE-2011-10023 json

MJM QuickPlayer <= 2010 .s3m Stack-Based Buffer Overflow

published 2025-08-20 14 mo ago modified 2026-06-16 4 mo ago also EUVD-2011-5254

cvss
8.4
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 35%
public exploits
1
Metasploit

Summary

MJM QuickPlayer (also known 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.

Timeline

  1. First public exploit (Metasploit exploit/windows/fileformat/mjm_quickplayer_s3m)
  2. Published

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
14 mo ago

Exploit prediction

0.41% chance of exploitation in the next 30 days, higher than 35% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • Metasploit exploit/windows/fileformat/mjm_quickplayer_s3m MJM QuickPlayer 1.00 Beta 60a / QuickPlayer 2010 .s3m Stack Buffer Overflow metasploit exploit, good rank, 2011-04-30
  • raw.githubusercontent.com https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/fileformat/mjm_quickplayer_s3m.rb referenced PoC, tagged "exploit" by a source, unverified
  • exploit-db.com https://www.exploit-db.com/exploits/17229 referenced PoC, tagged "exploit" by a source, unverified
  • web.archive.org 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/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 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
CNA 4.0 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • MJM Software QuickPlayer

Classification

Weakness
  • CWE-121 Stack-based Buffer Overflow

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.