CVE-2025-59694

Dec. 15, 2025, 1:39 p.m.

6.8
Medium

Description

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.

Product(s) Impacted

Vendor Product Versions
Entrust
  • Nshield 5c Firmware
  • Nshield 5c
  • Nshield Hsmi Firmware
  • Nshield Hsmi
  • Nshield Connect Xc Base Firmware
  • Nshield Connect Xc Base
  • Nshield Connect Xc Mid Firmware
  • Nshield Connect Xc Mid
  • Nshield Connect Xc High Firmware
  • Nshield Connect Xc High
  • *
  • -
  • *
  • -
  • *
  • -
  • *
  • -
  • *
  • -

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-1274
Improper Access Control for Volatile Memory Containing Boot Code
The product conducts a secure-boot process that transfers bootloader code from Non-Volatile Memory (NVM) into Volatile Memory (VM), but it does not have sufficient access control or other protections for the Volatile Memory.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
o entrust nshield_5c_firmware / / / / / / / /
o entrust nshield_5c_firmware / / / / / / / /
h entrust nshield_5c - / / / / / / /
o entrust nshield_hsmi_firmware / / / / / / / /
o entrust nshield_hsmi_firmware / / / / / / / /
h entrust nshield_hsmi - / / / / / / /
o entrust nshield_connect_xc_base_firmware / / / / / / / /
o entrust nshield_connect_xc_base_firmware / / / / / / / /
h entrust nshield_connect_xc_base - / / / / / / /
o entrust nshield_connect_xc_mid_firmware / / / / / / / /
o entrust nshield_connect_xc_mid_firmware / / / / / / / /
h entrust nshield_connect_xc_mid - / / / / / / /
o entrust nshield_connect_xc_high_firmware / / / / / / / /
o entrust nshield_connect_xc_high_firmware / / / / / / / /
h entrust nshield_connect_xc_high - / / / / / / /

CVSS Score

6.8 / 10

CVSS Data - 3.1

  • Attack Vector: PHYSICAL
  • Attack Complexity: LOW
  • Privileges Required: NONE
  • Scope: UNCHANGED
  • Confidentiality Impact: HIGH
  • Integrity Impact: HIGH
  • Availability Impact: HIGH
  • CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

    View Vector String

Timeline

Published: Dec. 2, 2025, 3:15 p.m.
Last Modified: Dec. 15, 2025, 1:39 p.m.

Status : Analyzed

CVE has had analysis completed and all data associations made.

More info

Source

cve@mitre.org

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.