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Nshield 5c Firmware CVE-2025-59694

| EUVDEUVD-2025-200260 MEDIUM
Improper Access Control for Volatile Memory Containing Boot Code (CWE-1274)
2025-12-02 cve@mitre.org
6.8
CVSS 3.1 · Vendor: mitre
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V15 - Secure Coding and Architecture Hardware configuration validation
Impact

CVSS 6.8. EPSS 0.0%. Public PoC/exploit available. No patch confirmed.

Exploit ScenarioDerived

An attacker could exploit this vulnerability in the affected application to compromise the security of affected deployments, potentially impacting confidentiality, integrity, or availability.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 15, 2026

CVE-2025-59694 is a security vulnerability (CVSS 6.8) that allows a physically proximate attacker. Risk factors: public PoC available.

Earlier versions of this analysis (1)
v1 Mar 15, 2026 - 14:04 CVSS 6.8

The Chassis Management Board in Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7, allows a physically proximate attacker to persistently modify firmware and influence

RemediationAI

Monitor vendor channels for patch availability.

Affected VersionsENISA

n/a n/a

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

Vulnerability type not specified by vendor.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (mitre) PRIMARY 6.8 MEDIUM
AV:P/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

Attack Vector
Physical
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
PoC Detected
Dec 15, 2025 - 13:39 vuln.today
Public exploit code
CVE Published
Dec 02, 2025 - 15:15 nvd
MEDIUM 6.8

DescriptionCVE.org

The Chassis Management Board in Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7, allows a physically proximate attacker to persistently modify firmware and influence the (insecurely configured) appliance boot process. To exploit this, the attacker must modify the firmware via JTAG or perform an upgrade to the chassis management board firmware. This is called F03.

Executive ViewAI

Why It Matters

CVE-2025-59694 presents notable security risk rated CVSS 6.8. Exploitation could compromise the security of affected deployments. Proof-of-concept code is publicly available. Organizations should apply vendor updates when available and monitor for exploitation.

Business Impact: Moderate
Compensating Controls

Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.

Threat Intelligence Overview

EPSS Score
0.0%
Top 92% exploitable
Exploit
POC
Public exploit code exists
Data Quality
5 sources
Confidence: Medium

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.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC Yes
EPSS 0.0%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

Exploitation· derived
Poc
System Exposure· derived
Small
Automatable· derived
No

Priority Score

54
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +34
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

CVE-2025-59695 CRITICAL POC
9.8 Dec 02

Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7, allow a user with OS root access to a

CVE-2025-59693 CRITICAL POC
9.8 Dec 02

The Chassis Management Board in Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7, allow

CVE-2025-59703 CRITICAL POC
9.1 Dec 02

Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7, allow a Physically Proximate Attacker

CVE-2025-59702 HIGH POC
7.2 Dec 02

A privilege escalation vulnerability (CVSS 7.2) that allows a physically proximate attacker with elevated privileges. Ri

CVE-2025-59697 HIGH POC
7.2 Dec 02

Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7, allow a physically proximate attacker

CVE-2025-59705 MEDIUM POC
6.8 Dec 02

Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7, allow a Physically Proximate Attacker

CVE-2025-59699 MEDIUM POC
6.8 Dec 02

Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7, allow a physically proximate attacker

CVE-2025-59698 MEDIUM POC
6.8 Dec 02

CVE-2025-59698 is a security vulnerability (CVSS 6.8) that allows a physically proximate attacker. Risk factors: public

CVE-2025-59704 MEDIUM POC
4.6 Dec 02

Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7, allow an attacker to gain access the

CVE-2025-59701 MEDIUM POC
4.1 Dec 02

Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7, allow a physically proximate attacker

CVE-2025-59700 LOW POC
3.9 Dec 02

Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7, allow a physically proximate attacker

CVE-2025-59696 LOW POC
3.2 Dec 02

CVE-2025-59696 is a security vulnerability (CVSS 3.2) that allows a physically proximate attacker. Risk factors: public

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