HOMEVULNERABILITIESCVE-2025-59693
CRITICAL

CVE-2025-59693

CWE-269Published: December 2, 2025· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

The Chassis Management Board in Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7, allows a physically proximate attacker to obtain debug access and escalate privileges by bypassing the tamper label and opening the chassis without leaving evidence, and accessing the JTAG connector. This is called F02.

NVD Source

Risk Analysis

This critical vulnerability in the Chassis Management Board of Entrust nShield Connect XC, nShield 5c, and nShield HSMi allows a physically proximate attacker to obtain debug access and escalate privileges. With a CVSS score of 9.8, this flaw is highly severe and could lead to complete system compromise. The absence of an EPSS score means there is no current data on its exploitation likelihood, but its critical severity warrants immediate attention.

No public exploit is currently known for this vulnerability. Exploitation requires physical proximity to the device, involving bypassing tamper labels and accessing the JTAG connector.

Recommended Action

Users of affected Entrust nShield devices should ensure robust physical security measures are in place to prevent unauthorized access. Consult Entrust for specific patching or mitigation guidance for versions through 13.6.11 or 13.7.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2025-59693 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

entrust10 product(s)
nshield 5c firmwarenshield 5cnshield hsmi firmwarenshield hsminshield connect xc base firmwarenshield connect xc basenshield connect xc mid firmwarenshield connect xc midnshield connect xc high firmwarenshield connect xc high
Source: NVD CPE · 10 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://github.com/google/security-research/security/advisories/GHSA-6q4x-m86j-gfwj

All References (2)

→
https://github.com/google/security-research/security/advisories/GHSA-6q4x-m86j-gfwjExploit · Third Party Advisory
→
https://www.entrust.com/use-case/why-use-an-hsmProduct

Quick Facts

CVE IDCVE-2025-59693
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-269
CISA KEVNo
Affected1 vendor(s)
PublishedDec 2, 2025

Related CVEs (CWE-269)

CVE-2018-4310
10.0
CVE-2021-1388
10.0
CVE-2024-6240
10.0
CVE-2022-24783
10.0
CVE-2020-27655
10.0
CVE-2026-31852
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2025-59693 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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