CVE intelligence and bounded remediation

CVE-2025-59695 — Entrust Nshield 5C Firmware security vulnerability

Critical CVSS 9.8

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.

Severity
Critical
CVSS
9.8 (3.1)
Published
2025-12-02
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-306

Affected products

  • entrust / nshield_5c_firmware
  • entrust / nshield_hsmi_firmware
  • entrust / nshield_connect_xc_base_firmware
  • entrust / nshield_connect_xc_mid_firmware
  • entrust / nshield_connect_xc_high_firmware

Showing 5 representative product identities from 10 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Authentication bypass and missing authentication

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Check exposure

  • Map every affected endpoint and protocol path, including alternate ports, legacy routes, recovery flows, service accounts, and machine-to-machine access.
  • Confirm which deployments enable the affected authentication mode and whether the interface is reachable from untrusted networks.
  • Review session, token, credential, and proxy trust configuration without attempting account takeover.

Remediate safely

  • Apply the supported fix and centralize fail-closed authentication before protected request handling.
  • Remove default or embedded credentials, rotate affected secrets and sessions, and bind authentication decisions to the intended audience and channel.
  • Add negative tests for alternate routes, malformed or absent credentials, recovery flows, and proxy-derived identity.

Authoritative sources

Complete CVE record and remediation plan

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