What is the CVSS score of CVE-2025-59699?

CVE-2025-59699 has a CVSS 3.1 base score of 6.8 (Medium). CVSS vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.0%.

Which versions of Nshield Connect Xc High Firmware are affected by CVE-2025-59699?

CVE-2025-59699 presents notable security risk rated CVSS 6.8. Exploitation could compromise the security of affected deployments. Proof-of-concept code is publicly available.

Is there a public PoC exploit available for CVE-2025-59699?

Yes, a public proof-of-concept exploit is available for CVE-2025-59699. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2025-59699?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Nshield Connect Xc High Firmware CVE-2025-59699

EUVD-2025-200255 MEDIUM

Authentication Bypass by Spoofing (CWE-290)

2025-12-02 cve@mitre.org

Authentication Bypass Nshield Connect Xc High Firmware Nshield Connect Xc Mid Firmware Nshield 5c Firmware Nshield Connect Xc Base Firmware Nshield Hsmi Firmware

6.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.8 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Physical

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

EUVD ID Assigned

Mar 15, 2026 - 14:04 euvd

EUVD-2025-200255

Analysis Generated

Mar 15, 2026 - 14:04 vuln.today

PoC Detected

Dec 08, 2025 - 19:41 vuln.today

Public exploit code

CVE Published

Dec 02, 2025 - 15:15 nvd

MEDIUM 6.8

DescriptionCVE.org

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.

Analysis

Technical ContextAI

An authentication bypass vulnerability allows attackers to circumvent login mechanisms and gain unauthorized access without valid credentials. This vulnerability is classified as Authentication Bypass by Spoofing (CWE-290).

RemediationAI

Implement robust authentication mechanisms. Use multi-factor authentication. Review authentication logic for bypass conditions. Remove default credentials.

CVE-2025-59699 vulnerability details – vuln.today

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Nshield Connect Xc High Firmware CVE-2025-59699

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

Analysis

Technical ContextAI

RemediationAI

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External POC / Exploit Code