CVE-2025-65951Public exploitNetwork attack vector

Early bet disclosure via bundled VDF outputs

Published Nov 25, 2025 · Updated Nov 25, 2025

Cryptographic weakness in mescuwa Inside Track / Entropy Derby before 2d38d2f allows remote authenticated users to decrypt bets early. TimeLockEncryptor::encrypt stores vdfOutputHex and vdfProofHex in each ciphertext, while decrypt() accepts fast proof verification instead of recomputing the sequential VDF. Operator-level access is required; exposed horse selections and stakes enable counter-bets before the betting window closes.

CVSS severity8.7
High
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cryptographic weakness in mescuwa Inside Track / Entropy Derby before 2d38d2f allows remote authenticated users to decrypt bets early. TimeLockEncryptor::encrypt stores vdfOutputHex and vdfProofHex in each ciphertext, while decrypt() accepts fast proof verification instead of recomputing the sequential VDF. Operator-level access is required; exposed horse selections and stakes enable counter-bets before the betting window closes.

The record

CVE
CVE-2025-65951
Published
Nov 25, 2025
Updated
Nov 25, 2025
Vendor
mescuwa
Product
Inside Track / Entropy Derby
Classifications
CWE-327, CWE-200, T1565
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Nov 25, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 25, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=< 2d38d2f16bbb3b4240698148f80d8c5202725c77

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

mescuwa · Inside Track / Entropy Derbyversion=< 2d38d2f16bbb3b4240698148f80d8c5202725c77

Published CVSS scores

8.7GitHubCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A: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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-327Use of a Broken or Risky Cryptographic Algorithm
CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1565Data Manipulation

Public exploit references

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

Technologies

Your stack

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Your stack

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