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CVE-2025-59693

Entrust Nshield 5c Firmware privilege escalation

9.8 CRITICALPublic exploitEPSS 0.90%
  1. Published2 Dec 2025

Description

The Chassis Management Board in Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7 (patched in 13.6.12 (LTS) and 13.9.0 (STS)), allows a physically proximate attacker to obtain debug access and escalate privileges by bypassing the tamper label and opening the chassis without leaving evidence, and accessing the JTAG connector. This is called F02.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Entrust Nshield 5c Firmware≥ 13.7.3 < 13.9.0 · < 13.6.12
Entrust Nshield Connect Xc Base Firmware≥ 13.7.3 < 13.9.0 · < 13.6.12
Entrust Nshield Connect Xc High Firmware≥ 13.7.3 < 13.9.0 · < 13.6.12
Entrust Nshield Connect Xc Mid Firmware≥ 13.7.3 < 13.9.0 · < 13.6.12
Entrust Nshield Hsmi Firmware≥ 13.7.3 < 13.9.0 · < 13.6.12

Remediation

Fixed in
Entrust Nshield 5c Firmware≥ 13.9.0
Entrust Nshield Connect Xc Base Firmware≥ 13.9.0
Entrust Nshield Connect Xc High Firmware≥ 13.9.0
Entrust Nshield Connect Xc Mid Firmware≥ 13.9.0
Entrust Nshield Hsmi Firmware≥ 13.9.0

References

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Frequently asked

Is CVE-2025-59693 being actively exploited?

CVE-2025-59693 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.90%.

How severe is CVE-2025-59693?

CVE-2025-59693 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.90% probability of exploitation.

Which products are affected by CVE-2025-59693?

Affected products include Entrust Nshield 5c Firmware, Entrust Nshield Connect Xc Base Firmware, Entrust Nshield Connect Xc High Firmware, Entrust Nshield Connect Xc Mid Firmware, Entrust Nshield Hsmi Firmware.

How do I fix CVE-2025-59693?

Upgrade affected software to a fixed version, for example Entrust Nshield 5c Firmware 13.9.0, Entrust Nshield Connect Xc Base Firmware 13.9.0, Entrust Nshield Connect Xc High Firmware 13.9.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-59693 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.