How severe is CVE-2025-59693?

CVE-2025-59693 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-59693 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-59693?

CVE-2025-59693 primarily affects Entrust Nshield 5c Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-59693?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-59693 have an EU (EUVD) identifier?

Yes. CVE-2025-59693 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-200261.

When was CVE-2025-59693 published?

CVE-2025-59693 was published on 2025-12-02 and last updated on 2026-06-17.

CVE-2025-59693

CVE-2025-59693 is a critical-severity vulnerability in Entrust Nshield 5c Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-269.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-200261
Weakness: CWE-269
Affected product: Entrust Nshield 5c Firmware
Published: 2025-12-02
Last modified: 2026-06-17

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 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.

Frequently asked questions

What is CVE-2025-59693?: 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 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.
How severe is CVE-2025-59693?: CVE-2025-59693 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-59693 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-59693?: CVE-2025-59693 primarily affects Entrust Nshield 5c Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-59693?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-59693 have an EU (EUVD) identifier?: Yes. CVE-2025-59693 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-200261.
When was CVE-2025-59693 published?: CVE-2025-59693 was published on 2025-12-02 and last updated on 2026-06-17.

References

Affected products (5)

cpe:2.3:o:entrust:nshield_5c_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:entrust:nshield_hsmi_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:entrust:nshield_connect_xc_base_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:entrust:nshield_connect_xc_mid_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:entrust:nshield_connect_xc_high_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Entrust Nshield 5c Firmware

CVE-2025-59695 — Critical (CVSS 9.8): Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7, allow a user with OS root access to…
CVE-2025-59703 — Critical (CVSS 9.1): Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7, allow a Physically Proximate…
CVE-2025-59702 — High (CVSS 7.2): Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7, allow a physically proximate…
CVE-2025-59697 — High (CVSS 7.2): Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7, allow a physically proximate…
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CVE-2025-59699 — Medium (CVSS 6.8): Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7, allow a physically proximate…

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