{"id":"CVE-2025-59694","title":"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 inf…","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 inf…","severity":"medium","cvss":6.8,"cvssVector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-1274"],"vendor":"entrust","product":"nshield_5c_firmware","affected":["nshield_5c_firmware < 13.6.12","nshield_5c_firmware >= 13.7.3, < 13.9.0","nshield_hsmi_firmware < 13.6.12","nshield_hsmi_firmware >= 13.7.3, < 13.9.0","nshield_connect_xc_base_firmware < 13.6.12","nshield_connect_xc_base_firmware >= 13.7.3, < 13.9.0","nshield_connect_xc_mid_firmware < 13.6.12","nshield_connect_xc_mid_firmware >= 13.7.3, < 13.9.0","nshield_connect_xc_high_firmware < 13.6.12","nshield_connect_xc_high_firmware >= 13.7.3, < 13.9.0"],"patched":["nshield_5c_firmware 13.9.0","nshield_hsmi_firmware 13.9.0","nshield_connect_xc_base_firmware 13.9.0","nshield_connect_xc_mid_firmware 13.9.0","nshield_connect_xc_high_firmware 13.9.0"],"published":"2025-12-02","updated":"2026-08-26","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-59694","references":[{"url":"https://github.com/advisories/GHSA-7gqq-6vwr-4g3v","label":"cve@mitre.org"},{"url":"https://github.com/google/security-research/security/advisories/GHSA-6q4x-m86j-gfwj","label":"cve@mitre.org"},{"url":"https://www.entrust.com/knowledgebase/hardware/understanding-nshield-security-advisory-september-2025","label":"cve@mitre.org"},{"url":"https://www.entrust.com/use-case/why-use-an-hsm","label":"cve@mitre.org"},{"url":"https://github.com/google/security-research/security/advisories/GHSA-6q4x-m86j-gfwj","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd"],"epss":0.00317,"epssPercentile":0.24911,"ingestedAt":"2026-08-26T16:46:29.925Z","slug":"CVE-2025-59694","body":"## Overview\n\nThe 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.\n\n## Affected\n\n- `nshield_5c_firmware < 13.6.12`\n- `nshield_5c_firmware >= 13.7.3, < 13.9.0`\n- `nshield_hsmi_firmware < 13.6.12`\n- `nshield_hsmi_firmware >= 13.7.3, < 13.9.0`\n- `nshield_connect_xc_base_firmware < 13.6.12`\n- `nshield_connect_xc_base_firmware >= 13.7.3, < 13.9.0`\n- `nshield_connect_xc_mid_firmware < 13.6.12`\n- `nshield_connect_xc_mid_firmware >= 13.7.3, < 13.9.0`\n- `nshield_connect_xc_high_firmware < 13.6.12`\n- `nshield_connect_xc_high_firmware >= 13.7.3, < 13.9.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `nshield_5c_firmware 13.9.0`\n- `nshield_hsmi_firmware 13.9.0`\n- `nshield_connect_xc_base_firmware 13.9.0`\n- `nshield_connect_xc_mid_firmware 13.9.0`\n- `nshield_connect_xc_high_firmware 13.9.0`","depth":"sunlit","depthScore":37,"depthScoreParts":{"impact":37.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}