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

CVE-2025-59694

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

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.

MEDIUM · CVSS 6.8 EPSS 0.00041
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-1274Improper Access Control for Volatile Memory Containing Boot Code
▤

Affected Products & Versions

10
entrust nshield 5c firmware< 13.6.12
entrust nshield 5c firmware>= 13.7.3 and < 13.9.0
entrust nshield hsmi firmware< 13.6.12
entrust nshield hsmi firmware>= 13.7.3 and < 13.9.0
entrust nshield connect xc base firmware< 13.6.12
entrust nshield connect xc base firmware>= 13.7.3 and < 13.9.0
entrust nshield connect xc mid firmware< 13.6.12
entrust nshield connect xc mid firmware>= 13.7.3 and < 13.9.0
⚠

Public Exploits & PoCs

1
pocgithub.com · GHSA-6q4x-m86j-gfwjgithub.com
▣

Scoring & Timeline

6.8
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD02 Dec 2025 · 03:15 PM
CVSS VectorCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.entrust.com/use-case/why-use-an-hsmProduct
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