CVE-2025-59699

Name: CVE-2025-59699
Creator: NVD / NIST
Published: 2025-12-02T15:15:55.537+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.8/10EPSS 0.27%

Last modified Jun 17, 2026

CVE-2025-59699 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. 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 booting from a USB device with a valid root filesystem. This occurs because of insecure default settings in the Legacy GRUB Bootloader.. EPSS estimates a 0.27% chance of exploitation in the next 30 days.

Description

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 booting from a USB device with a valid root filesystem. This occurs because of insecure default settings in the Legacy GRUB Bootloader.

Metrics

CVSS 3.1

6.8/10

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.27%

18.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-290

Affected Software

Vendor	Product	Versions
Entrust	Nshield 5c Firmware	< 13.6.12
Entrust	Nshield 5c Firmware	>= 13.7, < 13.9.0
Entrust	Nshield Hsmi Firmware	< 13.6.12
Entrust	Nshield Hsmi Firmware	>= 13.7, < 13.9.0
Entrust	Nshield Connect Xc Base Firmware	< 13.6.12
Entrust	Nshield Connect Xc Base Firmware	>= 13.7, < 13.9.0
Entrust	Nshield Connect Xc Mid Firmware	< 13.6.12
Entrust	Nshield Connect Xc Mid Firmware	>= 13.7, < 13.9.0
Entrust	Nshield Connect Xc High Firmware	< 13.6.12
Entrust	Nshield Connect Xc High Firmware	>= 13.7, < 13.9.0

References

https://github.com/google/security-research/security/advisories/GHSA-6q4x-m86j-gfwjExploit, Third Party Advisory
https://www.entrust.com/use-case/why-use-an-hsmProduct

Timeline

Published: Dec 2, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-59699?

How severe is CVE-2025-59699?

CVE-2025-59699 has a CVSS score of 6.8/10 (MEDIUM severity). The EPSS model estimates a 0.27% probability of exploitation in the next 30 days.

How do I fix CVE-2025-59699?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-59699?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST