How severe is CVE-2025-59699?

CVE-2025-59699 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-59699 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-59699?

CVE-2025-59699 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-2025-59699?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-59699 have an EU (EUVD) identifier?

Yes. CVE-2025-59699 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-200255.

When was CVE-2025-59699 published?

CVE-2025-59699 was published on 2025-12-02 and last updated on 2026-08-26.

CVE-2025-59699

CVE-2025-59699 is a medium-severity vulnerability in Entrust Nshield 5c Firmware with a CVSS 3.x base score of 6.8. 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-290.

Key facts

Severity: Medium (CVSS 3.x base score 6.8)
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-200255
Weakness: CWE-290
Affected product: Entrust Nshield 5c Firmware
Published: 2025-12-02
Last modified: 2026-08-26

Description

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)), 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.

Frequently asked questions

What is CVE-2025-59699?: 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)), 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.
How severe is CVE-2025-59699?: CVE-2025-59699 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-59699 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-59699?: CVE-2025-59699 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-2025-59699?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-59699 have an EU (EUVD) identifier?: Yes. CVE-2025-59699 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-200255.
When was CVE-2025-59699 published?: CVE-2025-59699 was published on 2025-12-02 and last updated on 2026-08-26.

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 (patched in 13.6.12 (LTS) and 13.9.0…
CVE-2025-59693 — Critical (CVSS 9.8): The Chassis Management Board in Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7…
CVE-2025-59703 — Critical (CVSS 9.1): 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…
CVE-2025-59702 — High (CVSS 7.2): 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…
CVE-2025-59697 — High (CVSS 7.2): 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…
CVE-2025-59705 — Medium (CVSS 6.8): 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…

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