CVE-2025-59697· NVD / CVE Program· CNA mitre

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 physi

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 editing the Legacy GRUB bootloader configuration to start a root shell upon boot of the host OS. This is called F06.

HighCVSS 7.2 · v3.1—No exploit Fix available

Published: Dec 2, 2025
Updated: Aug 26, 2026
EPSS: 0.3% · 21th percentile
CWE: CWE-269

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Action score

Monitor

Low priority for now.

CVSS: 28 / 40 · 7.2 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.3%

CISA SSVC decision

Exploitation: proof of concept
Automatable: no
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

Affected systems

Vendor	Product	CPE
entrust	nshield 5c firmware	cpe:2.3:o:entrust:nshield_5c_firmware
entrust	nshield 5c	cpe:2.3:h:entrust:nshield_5c
entrust	nshield hsmi firmware	cpe:2.3:o:entrust:nshield_hsmi_firmware
entrust	nshield hsmi	cpe:2.3:h:entrust:nshield_hsmi
entrust	nshield connect xc base firmware	cpe:2.3:o:entrust:nshield_connect_xc_base_firmware
entrust	nshield connect xc base	cpe:2.3:h:entrust:nshield_connect_xc_base
entrust	nshield connect xc mid firmware	cpe:2.3:o:entrust:nshield_connect_xc_mid_firmware
entrust	nshield connect xc mid	cpe:2.3:h:entrust:nshield_connect_xc_mid
entrust	nshield connect xc high firmware	cpe:2.3:o:entrust:nshield_connect_xc_high_firmware
entrust	nshield connect xc high	cpe:2.3:h:entrust:nshield_connect_xc_high

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

entrust nshield 5c firmwarebefore 13.6.12
entrust nshield 5c firmware13.7 and later · before 13.9.0
entrust nshield connect xc base firmware13.7 and later · before 13.9.0
entrust nshield connect xc base firmwarebefore 13.6.12
entrust nshield connect xc high firmware13.7 and later · before 13.9.0
entrust nshield connect xc high firmwarebefore 13.6.12
entrust nshield connect xc mid firmwarebefore 13.6.12
entrust nshield connect xc mid firmware13.7 and later · before 13.9.0
entrust nshield hsmi firmwarebefore 13.6.12
entrust nshield hsmi firmware13.7 and later · before 13.9.0

Same product

entrust: all records

Other highest-scoring records for the same primary product.

CVE-2025-59695Entrust 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 user
39Monitor
CVE-2025-59693The 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)
39Monitor
CVE-2025-59703Entrust 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 Physi
36Monitor
CVE-2025-59702Entrust 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 physi
28Monitor
CVE-2025-59705Entrust 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 Physi
27Monitor
CVE-2025-59699Entrust 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 physi
27Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
n/a n/a	13.6.12 · description	Vendor (CNA)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2025-596930 days apartThe 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)
39Monitor
CVE-2025-597050 days apartEntrust 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 Physi
27Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Physical access to the device is required.
Administrator privileges are required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Impact can extend beyond the vulnerable component (scope changes).

Attack vector: Physical
Attack complexity: Low
Privileges required: High
User interaction: None
Scope: Changed
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-269 · Improper Privilege Management

CVSS vector

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

nvd-secondary

Root cause

To simplify setup, a service account is granted broad, cluster-wide permissions. The principle of least privilege is skipped during installation.

The bug in code

The whole CWE-269 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

yaml

1kind: ClusterRole2rules:3  - apiGroups: ["*"]4    resources: ["*"]5    verbs: ["*"]

Fixed

yaml

1kind: Role2metadata:3  namespace: lodos-system4rules:5  - apiGroups: ["apps"]6    resources: ["deployments"]7    verbs: ["get", "list", "update"]

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

Abuse Elevation Control MechanismT1548

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

Fix✗ → ✓Sep 29, 2026, 11:53 AM UTC

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records