EUVD-2025-200259Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Authentication required for critical functions
MITRE ATT&CK
1 technique across 1 tactic: Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | Unauthorized access to protected functionality, data, or administrative interfaces, potentially leading to full system compromise. With a CVSS score of 9.8 (CRITICAL), this represents a critical risk. |
| Exploit ScenarioDerived | An attacker manipulates authentication tokens, exploits logic flaws, or uses default credentials to bypass the login mechanism and access restricted areas. |
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Alert meAnalysisAIv1 – Mar 15, 2026
Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7, allow a user with OS root access to alter firmware on the Chassis Management Board (without Authentication). This is called F04.
Earlier versions of this analysis (1)
RemediationAI
Implement robust authentication mechanisms. Use multi-factor authentication. Review authentication logic for bypass conditions. Remove default credentials.
Affected VersionsENISA
Affects your stack
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Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
An authentication bypass vulnerability allows attackers to circumvent login mechanisms and gain unauthorized access without valid credentials. This vulnerability is classified as Missing Authentication for Critical Function (CWE-306).
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from Vendor (mitre) · only source for this CVE.
CVSS VectorVendor: mitre
Lifecycle Timeline
2Executive ViewAI
A critical vulnerability in Entrust nShield hardware security modules allows authenticated OS-level users to compromise the device's firmware without additional authentication, potentially enabling attackers to intercept cryptographic operations and steal sensitive keys. Organizations using affected nShield models face immediate risk of crypto material compromise if insider threats or OS-level breaches occur.
Implement principle of least privilege for OS root access through role-based access controls and multi-factor authentication; restrict physical and remote access to HSM management interfaces; enable comprehensive audit logging and real-time monitoring for unauthorized firmware modification attempts; isolate HSM management networks from general corporate networks; implement host intrusion detection on systems with HSM access; require cryptographic attestation of firmware before operations; consider temporary deployment of air-gapped HSM management access until patch is available.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
More in Nshield 5c Firmware
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Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7, allow a physically proximate attacker
Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7, allow a Physically Proximate Attacker
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CVE-2025-59694 is a security vulnerability (CVSS 6.8) that allows a physically proximate attacker. Risk factors: public
Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7, allow an attacker to gain access the
Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7, allow a physically proximate attacker
Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7, allow a physically proximate attacker
CVE-2025-59696 is a security vulnerability (CVSS 3.2) that allows a physically proximate attacker. Risk factors: public
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