CVE-2011-10024Public exploit

Code execution via improper .s3m parser bounds checking

Published Aug 20, 2025 · Updated Apr 7, 2026

Stack-based buffer overflow in MJM Software Core Player 2011 allows context-dependent attackers to execute code via a crafted .s3m file. The .s3m file parser fails to enforce bounds while processing attacker-controlled file data, permitting a stack overwrite and ROP-chain execution. Exploitation requires a user to open the file; the public exploit targets Windows XP, Vista, and 7 and runs code in the player process.

CVSS severity8.4
High
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Stack-based buffer overflow in MJM Software Core Player 2011 allows context-dependent attackers to execute code via a crafted .s3m file. The .s3m file parser fails to enforce bounds while processing attacker-controlled file data, permitting a stack overwrite and ROP-chain execution. Exploitation requires a user to open the file; the public exploit targets Windows XP, Vista, and 7 and runs code in the player process.

The record

CVE
CVE-2011-10024
Published
Aug 20, 2025
Updated
Apr 7, 2026
Vendor
MJM Software
Product
Core Player
Classifications
CWE-121, CAPEC-100, T1203, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 20, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 7, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2011

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

MJM Software · Core Playerversion=2011

Published CVSS scores

8.4VulnCheckCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
CAPEC-100Overflow Buffers
T1203Exploitation for Client Execution
T1204.002User Execution: Malicious File

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo