Medium severity6.8NVD Advisory· Published Dec 2, 2025· Updated Aug 26, 2026

CVE-2025-59694

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Entrust/Nshield 5c Firmware
cpe:2.3:o:entrust:nshield_5c_firmware:*:*:*:*:*:*:*:*
Range: <13.6.12
Entrust/Nshield Connect Xc Base Firmware
cpe:2.3:o:entrust:nshield_connect_xc_base_firmware:*:*:*:*:*:*:*:*
Range: <13.6.12
Entrust/Nshield Connect Xc High Firmware
cpe:2.3:o:entrust:nshield_connect_xc_high_firmware:*:*:*:*:*:*:*:*
Range: <13.6.12
Entrust/Nshield Connect Xc Mid Firmware
cpe:2.3:o:entrust:nshield_connect_xc_mid_firmware:*:*:*:*:*:*:*:*
Range: <13.6.12
Entrust/Nshield Hsmi Firmware
cpe:2.3:o:entrust:nshield_hsmi_firmware:*:*:*:*:*:*:*:*
Range: <13.6.12
Entrust/nShield Connect XCcpe-rescue2 versions
(expand)+ 1 more
- (no CPE)
- (no CPE)range: <=13.7
Entrust/nShield 5cllm-fuzzy
Range: <=13.7
Entrust/nShield HSMillm-fuzzy
Range: <=13.7

Patches

Vulnerability mechanics

References

github.com/google/security-research/security/advisories/GHSA-6q4x-m86j-gfwjnvdExploitThird Party Advisory
www.entrust.com/use-case/why-use-an-hsmnvdProduct
github.com/advisories/GHSA-7gqq-6vwr-4g3vnvd
www.entrust.com/knowledgebase/hardware/understanding-nshield-security-advisory-september-2025nvd

News mentions

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