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CVE-2025-65951— Inside Track / Entropy Derby Timelock Encryption Bypassed via Pre-Computed VDF Output Leakage

Quick assessment

Affected
mescuwa entropy-derby
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Inside Track是Lumina Mescuwa个人开发者的一个赛马博彩引擎。 Inside Track存在加密问题漏洞，该漏洞源于VDF加密系统未强制执行顺序延迟，可能导致立即解密。

CVSS 8.7 · High EPSS 0.12% · P2

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-65951

Vulnerability Information
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Vulnerability Title
Inside Track / Entropy Derby Timelock Encryption Bypassed via Pre-Computed VDF Output Leakage
Source: CVE Program / CVE List V5
Vulnerability Description
Inside Track / Entropy Derby is a research-grade horse-racing betting engine. Prior to commit 2d38d2f, the VDF-based timelock encryption system fails to enforce sequential delay against the betting operator. Bettors pre-compute the entire Wesolowski VDF and include vdfOutputHex in their encrypted bet ticket, allowing the house to decrypt immediately using fast proof verification instead of expensive VDF evaluation. This issue has been patched via commit 2d38d2f.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Inside Track 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Inside Track是Lumina Mescuwa个人开发者的一个赛马博彩引擎。 Inside Track存在加密问题漏洞，该漏洞源于VDF加密系统未强制执行顺序延迟，可能导致立即解密。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
mescuwa entropy-derby < 2d38d2f16bbb3b4240698148f80d8c5202725c77 -

II. Public POCs for CVE-2025-65951

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 10629 chars
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III. Intelligence Information for CVE-2025-65951

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Patches & Fixes for CVE-2025-65951 (1)

Vendor Advisories for CVE-2025-65951 (1)

IV. Related Vulnerabilities

Same weakness: CWE-200

V. Comments for CVE-2025-65951

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