The Chassis Management Board in Entrust nShield Connect XC, nShield 5c, and nShield HSMi…
Priority HIGH 65CWE-1274Published · Updated
Key facts
- Attack vector
- Physical
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
The 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) and 13.9.0 (STS)), allows a physically proximate attacker to persistently modify firmware and influence the (insecurely configured) appliance boot process. To exploit this, the attacker must modify the firmware via JTAG or perform an upgrade to the chassis management board firmware. This is called F03.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00343 28th 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; 13.7.3 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; 13.7.3 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; 13.7.3 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; 13.7.3 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; 13.7.3 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; 13.7.3 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; 13.7.3 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; 13.7.3 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; 13.7.3 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; 13.7.3 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-2025-59694
- 2026-10-03 Alias added: GHSA-7gqq-6vwr-4g3v
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-2025-37158 Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7… CVSS 3.1HIGH 7.2
Sources
- CVE-2025-59694 · CVE Program
- CVE-2025-59694 · NVD
- FIRST EPSS
- GHSA-7gqq-6vwr-4g3v · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences