What is the CVSS score of CVE-2025-65548?

CVE-2025-65548 has a CVSS 3.1 base score of 9.1 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N. EPSS exploitation probability: 0.1%.

Which versions of Nutshell are affected by CVE-2025-65548?

Organizations using NUT-14 face critical risk from CVE-2025-65548 rated CVSS 9.1. Successful exploitation could critically impact the confidentiality, integrity, and availability of affected systems.. A patch is available.

Is there a public PoC exploit available for CVE-2025-65548?

Yes, a public proof-of-concept exploit is available for CVE-2025-65548. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2025-65548?

Within 24 hours: Identify all affected systems and apply vendor patches immediately. Monitor vendor channels for patch availability.

Nutshell CVE-2025-65548

EUVD-2025-201796 CRITICAL

Improper Validation of Specified Quantity in Input (CWE-1284)

2025-12-08 cve@mitre.org

Information Disclosure Nutshell

9.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.1 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Lifecycle Timeline

EUVD ID Assigned

Mar 15, 2026 - 17:54 euvd

EUVD-2025-201796

Analysis Generated

Mar 15, 2026 - 17:54 vuln.today

PoC Detected

Dec 15, 2025 - 15:56 vuln.today

Public exploit code

CVE Published

Dec 08, 2025 - 19:15 nvd

CRITICAL 9.1

DescriptionCVE.org

NUT-14 allows cashu tokens to be created with a preimage hash. However, nutshell (cashubtc/nuts) before 0.18.0 do not validate the size of preimage when the token is spent. The preimage is stored by the mint and attacker can exploit this vulnerability to fill the mint's db nd disk with arbitrary data.

AnalysisAI

A security vulnerability in NUT-14 (CVSS 9.1) that allows cashu tokens. Risk factors: public PoC available.

Technical ContextAI

Vulnerability type not specified by vendor. CVSS 9.1 indicates critical severity with likely remote exploitation vector. Affects NUT-14.

RemediationAI

Monitor vendor channels for patch availability.

CVE-2025-65548 vulnerability details – vuln.today

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Nutshell CVE-2025-65548

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

RemediationAI

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External POC / Exploit Code