CVE-2025-59695: Missing Authentication
Source CVE Database V5
Not known to be exploited · CVSS 9.8 Critical · fixed in 13.6.12 : patch affected systems as a priority.
Data as of 26 Oct 2026, 11:07 UTC
- EPSS
- 0.6% chance of exploitation in 30 days – higher than 51% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 13.6.12
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 2 Dec 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
AI-suggested
- Restrict and tightly control root-level OS access to systems hosting Entrust nShield HSMs, employing strong authentication, role-based access controls, and regular audits.
- Implement continuous monitoring and integrity verification of firmware on the Chassis Management Board to detect unauthorized modifications promptly.
- 4. Use hardware and software-based intrusion detection systems to alert on suspicious activities related to firmware or system modifications. 5. Segregate HSM management interfaces and networks from general IT infrastructure to reduce exposure to potential attackers. 6. Conduct regular security assessments and penetration tests focusing on OS-level privilege escalation and firmware integrity. 7. Employ multi-factor authentication and just-in-time access provisioning for administrative accounts to minimize risk of root compromise. 8. Maintain an incident response plan specifically addressing HSM compromise scenarios to enable rapid containment and recovery.
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 user with OS root access to alter firmware on the Chassis Management Board (without Authentication). This is called F04.
References
- entrust.com/use-case/why-use-an-hsm (opens in a new tab)
- github.com/google/security-research/security/advisories/GHSA-6q4x-m86j-gfwj (opens in a new tab)
- entrust.com/knowledgebase/hardware/understanding-nshield-security-advisory-september-2025 (opens in a new tab)
- github.com/advisories/GHSA-w5fv-rcj5-pmj9 (opens in a new tab)