Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7…
Priority HIGH 67CWE-269Published · Updated
Key facts
- Attack vector
- Physical
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Privilege escalation, Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-269 and CWE-284.
Summary
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00332 26th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:entrust:nshield_5c_firmware:*:*:*:*:*:*:*:* | before 13.6.12; 13.7 to before 13.9.0 | Vulnerable | Entrust Corporation |
| cpe:2.3:h:entrust:nshield_5c:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Entrust Corporation |
| cpe:2.3:o:entrust:nshield_hsmi_firmware:*:*:*:*:*:*:*:* | before 13.6.12; 13.7 to before 13.9.0 | Vulnerable | Entrust Corporation |
| cpe:2.3:h:entrust:nshield_hsmi:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Entrust Corporation |
| cpe:2.3:o:entrust:nshield_connect_xc_base_firmware:*:*:*:*:*:*:*:* | before 13.6.12; 13.7 to before 13.9.0 | Vulnerable | Entrust Corporation |
| cpe:2.3:h:entrust:nshield_connect_xc_base:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Entrust Corporation |
| cpe:2.3:o:entrust:nshield_connect_xc_mid_firmware:*:*:*:*:*:*:*:* | before 13.6.12; 13.7 to before 13.9.0 | Vulnerable | Entrust Corporation |
| cpe:2.3:h:entrust:nshield_connect_xc_mid:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Entrust Corporation |
| cpe:2.3:o:entrust:nshield_connect_xc_high_firmware:*:*:*:*:*:*:*:* | before 13.6.12; 13.7 to before 13.9.0 | Vulnerable | Entrust Corporation |
| cpe:2.3:h:entrust:nshield_connect_xc_high:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Entrust Corporation |
- cpe:2.3:o:entrust:nshield_5c_firmware:*:*:*:*:*:*:*:* Versions before 13.6.12; 13.7 to before 13.9.0 Vulnerable ·Entrust Corporation
- cpe:2.3:h:entrust:nshield_5c:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Entrust Corporation
- cpe:2.3:o:entrust:nshield_hsmi_firmware:*:*:*:*:*:*:*:* Versions before 13.6.12; 13.7 to before 13.9.0 Vulnerable ·Entrust Corporation
- cpe:2.3:h:entrust:nshield_hsmi:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Entrust Corporation
- cpe:2.3:o:entrust:nshield_connect_xc_base_firmware:*:*:*:*:*:*:*:* Versions before 13.6.12; 13.7 to before 13.9.0 Vulnerable ·Entrust Corporation
- cpe:2.3:h:entrust:nshield_connect_xc_base:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Entrust Corporation
- cpe:2.3:o:entrust:nshield_connect_xc_mid_firmware:*:*:*:*:*:*:*:* Versions before 13.6.12; 13.7 to before 13.9.0 Vulnerable ·Entrust Corporation
- cpe:2.3:h:entrust:nshield_connect_xc_mid:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Entrust Corporation
- cpe:2.3:o:entrust:nshield_connect_xc_high_firmware:*:*:*:*:*:*:*:* Versions before 13.6.12; 13.7 to before 13.9.0 Vulnerable ·Entrust Corporation
- cpe:2.3:h:entrust:nshield_connect_xc_high:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Entrust Corporation
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-59697
- 2026-10-03 Alias added: GHSA-c2xm-xv33-q796
References
More Entrust Corporation Nshield 5c Firmware vulnerabilities
- TI-2025-37154 The Chassis Management Board in Entrust nShield Connect XC, nShield 5c, and nShield HSMi… CVSS 3.1CRITICAL 9.8
- TI-2025-37164 Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7… CVSS 3.1CRITICAL 9.1
- TI-2025-37165 Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7… CVSS 3.1HIGH 7.8
- TI-2025-37163 Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7… CVSS 3.1HIGH 7.2
- TI-2025-37161 Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7… CVSS 3.1MEDIUM 5.8
- TI-2025-37166 Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7… CVSS 3.1MEDIUM 6.8
Sources
- CVE-2025-59697 · CVE Program
- CVE-2025-59697 · NVD
- FIRST EPSS
- GHSA-c2xm-xv33-q796 · GitHub Advisory Database · CC BY 4.0
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