Entrust nShield Connect XC/nShield 5c/nShield HSMi up to 13.6.11/13.7 Legacy GRUB Bootloader Configuration privileges management

Summaryinfo

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. Affected is an unknown function of the component Legacy GRUB Bootloader Configuration Handler. This manipulation causes Local Privilege Escalation. The identification of this vulnerability is CVE-2025-59697. It is feasible to perform the attack on the physical device. There is no exploit available.

Detailsinfo

A vulnerability was found in Entrust nShield Connect XC, nShield 5c and nShield HSMi up to 13.6.11/13.7. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the component Legacy GRUB Bootloader Configuration Handler. The manipulation with an unknown input leads to a local privilege escalation vulnerability. The CWE definition for the vulnerability is CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. As an impact it is known to affect 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, allow a physically proximate attacker to escalate privileges by editing the Legacy GRUB bootloader configuration to start a root shell upon boot of the host OS. This is called F06.

The advisory is shared at entrust.com. This vulnerability is known as CVE-2025-59697 since 09/18/2025. The exploitation appears to be easy. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/02/2025). MITRE ATT&CK project uses the attack technique T1068 for this issue.

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

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

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• 🔒
• 🔒

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