Entrust nShield Connect XC/nShield 5c/nShield HSMi up to 13.6.11/13.7 EOL Legacy Bootloader generation of incorrect security tokens

Summaryinfo

A vulnerability was found in Entrust nShield Connect XC, nShield 5c and nShield HSMi up to 13.6.11/13.7. It has been classified as critical. This vulnerability affects unknown code of the component EOL Legacy Bootloader. The manipulation leads to Local Privilege Escalation. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability is listed as CVE-2025-59698. It is possible to launch the attack on the physical device. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Entrust nShield Connect XC, nShield 5c and nShield HSMi up to 13.6.11/13.7. This issue affects an unknown code block of the component EOL Legacy Bootloader. The manipulation with an unknown input leads to a local privilege escalation vulnerability. Using CWE to declare the problem leads to CWE-1270. The product implements a Security Token mechanism to differentiate what actions are allowed or disallowed when a transaction originates from an entity. However, the Security Tokens generated in the system are incorrect. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7, might allow a physically proximate attacker to gain access to the EOL legacy bootloader.

The advisory is shared at entrust.com. The identification of this vulnerability is CVE-2025-59698 since 09/18/2025. The exploitation is known to be easy. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1134.003 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• Entrust

Name

• nShield 5c
• nShield Connect XC
• nShield HSMi

Version

• 13.0
• 13.1
• 13.2
• 13.3
• 13.4
• 13.5
• 13.6
• 13.6.0
• 13.6.1
• 13.6.2
• 13.6.3
• 13.6.4
• 13.6.5
• 13.6.6
• 13.6.7
• 13.6.8
• 13.6.9
• 13.6.10
• 13.6.11
• 13.7

Support

• end of life

CPE 2.3info

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CPE 2.2info

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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