CVE-2025-30234

High

Published: 19 March 2025

Published

19 March 2025

Modified

15 April 2026

KEV Added

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Patch

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CVSS Score 8.3 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

EPSS Score 0.0013 31.3th percentile

Risk Priority 17 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-30234 is a high-severity Use of Hard-coded Cryptographic Key (CWE-321) vulnerability in Tritondatacenter (inferred from references). Its CVSS base score is 8.3 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Adversary-in-the-Middle (T1557); ranked at the 31.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 IA-5 (Authenticator Management) and SC-12 (Cryptographic Key Establishment and Management).

Threat & Defense at a Glance

What attackers do: exploitation maps to Adversary-in-the-Middle (T1557). What defenders deploy: see the NIST 800-53 controls recommended below.

Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

SC-12 Cryptographic Key Establishment and Management good match

prevent

Requires establishment and management of cryptographic keys, directly preventing the embedding and use of static, hard-coded SSH host keys in system images.

IA-5 Authenticator Management good match

prevent

Mandates proper management of authenticators including changing default content and protecting from unauthorized disclosure, addressing static SSH host keys as default authenticators.

SI-2 Flaw Remediation good match

detectrespondrecover

Provides a process to identify, report, and correct flaws like CVE-2025-30234 in a timely manner, enabling remediation of vulnerable images with static SSH keys.

MITRE ATT&CK Enterprise TechniquesAI

T1557 Adversary-in-the-Middle Credential Access

Adversaries may attempt to position themselves between two or more networked devices using an adversary-in-the-middle (AiTM) technique to support follow-on behaviors such as [Network Sniffing](https://attack.

attack.mitre.org →

Why these techniques?

Hardcoded static SSH host keys in the image enable an attacker on an adjacent network to impersonate the SSH server and perform adversary-in-the-middle attacks (e.g., via traffic redirection), directly facilitating session interception or credential capture due to the known private key.

Confidence: MEDIUM · MITRE ATT&CK Enterprise v19.0

NVD Description

SmartOS, as used in Triton Data Center and other products, has static host SSH keys in the 60f76fd2-143f-4f57-819b-1ae32684e81b image (a Debian 12 LX zone image from 2024-07-26).

Deeper analysisAI

CVE-2025-30234 is a vulnerability in SmartOS, as used in Triton Data Center and other products, involving static host SSH keys embedded in the 60f76fd2-143f-4f57-819b-1ae32684e81b image—a Debian 12 LX zone image from 2024-07-26. Published on 2025-03-19, it is associated with CWE-321 (Use of Hard-coded Cryptographic Key) and carries a CVSS v3.1 base score of 8.3 (AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H).

An attacker on an adjacent network (AV:A) with no privileges (PR:N) and no user interaction (UI:N) can exploit this high-complexity (AC:H) issue. Exploitation enables high-impact confidentiality, integrity, and availability effects (C:I:A:H) across a changed scope (S:C), potentially allowing unauthorized access or control via the static SSH keys.

Advisories with mitigation guidance include Triton Data Center's TPS-2025-002 at https://security.tritondatacenter.com/tps-2025-002/, a SmartOS discussion thread at https://smartos.topicbox.com/groups/smartos-discuss/Ta6f13072e6bedddc-M3702e993edd7d6ce8d78dfc8, and an oss-security mailing list post at https://www.openwall.com/lists/oss-security/2025/03/13/10.