VDB-333423 · CVE-2025-65951 · GHSA-pm54-f847-w4mh

mescuwa entropy-derby information disclosure

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.6	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic has been found in mescuwa entropy-derby. This affects an unknown part. Performing a manipulation results in information disclosure. This vulnerability was named CVE-2025-65951. The attack may be initiated remotely. There is no available exploit. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability classified as problematic has been found in mescuwa entropy-derby (version now known). This affects some unknown processing. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

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.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2025-65951 since 11/18/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. Additional levels of successful authentication are necessary for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

Applying the patch 2d38d2f16bbb3b4240698148f80d8c5202725c77 is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the vulnerability database at CNNVD (CNNVD-202511-2813). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

mescuwa

Name

entropy-derby

License

open-source

Website

Product: https://github.com/mescuwa/entropy-derby/

CPE 2.3info

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CPE 2.2info

🔒

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.6

VulDB Base Score: 2.7
VulDB Temp Score: 2.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.7
CNA Vector (GitHub_M): 🔒

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: 2d38d2f16bbb3b4240698148f80d8c5202725c77

Timelineinfo

11/18/2025 CVE reserved
11/25/2025 +7 days Advisory disclosed
11/25/2025 +0 days VulDB entry created
11/26/2025 +1 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-pm54-f847-w4mh
Status: Confirmed

CVE: CVE-2025-65951 (🔒)
GCVE (CVE): GCVE-0-2025-65951
GCVE (VulDB): GCVE-100-333423
CNNVD: CNNVD-202511-2813 - Inside Track 加密问题漏洞

Entryinfo

Created: 11/25/2025 07:22
Updated: 11/26/2025 17:42
Changes: 11/25/2025 07:22 (64), 11/26/2025 17:42 (6)
Complete: 🔍
Cache ID: 216::103