CVE-2025-59697
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.31%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.2 HIGHCVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
- EPSS
- 0.31% probability · 24th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-269, CWE-284
- Affected
- entrust/nshield 5c firmware · entrust/nshield hsmi firmware · entrust/nshield connect xc base firmware · entrust/nshield connect xc mid firmware · entrust/nshield connect xc high firmware
- Source
- cve@mitre.org
EPSS 0.3% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/advisories/GHSA-c2xm-xv33-q796
- https://github.com/google/security-research/security/advisories/GHSA-6q4x-m86j-gfwjExploit, Third Party Advisory
- https://www.entrust.com/knowledgebase/hardware/understanding-nshield-security-advisory-september-2025
- https://www.entrust.com/use-case/why-use-an-hsmProduct
- https://github.com/google/security-research/security/advisories/GHSA-6q4x-m86j-gfwjExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.