CVE-2025-20620

High

Published: 14 January 2025

Published

14 January 2025

Modified

15 April 2026

KEV Added

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Patch

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CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Score 0.0013 32.3th percentile

Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-20620 is a high-severity SQL Injection (CWE-89) vulnerability in Jvn (inferred from references). Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 32.3th 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 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Deeper analysis

CVE-2025-20620 is a SQL injection vulnerability (CWE-89) present in the STEALTHONE D220 and D340 devices manufactured by Y'S Corporation. The issue affects the web management page of these products, allowing attackers to extract sensitive credentials.

With a CVSS v3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N), the vulnerability enables remote exploitation over the network with low attack complexity, no required privileges, and no user interaction. An unauthenticated attacker who can access the affected device can leverage the SQL injection to obtain the administrative password for the web management page, potentially leading to full administrative control.

Advisories from JVN (https://jvn.jp/en/vu/JVNVU99653331/) and the vendor (https://stealthone.net/product_info/d220-d340%e3%80%8cv6-03-03%e3%80%8d%e5%8f%8a%e3%81%b3d440%e3%80%8cv7-00-11%e3%80%8d%e3%83%95%e3%82%a1%e3%83%bc%e3%83%a0%e3%82%a6%e3%82%a7%e3%82%a2%e3%82%92%e3%83%aa%e3%83%aa%e3%83%bc%e3%82%b9%e8%87%b4/) recommend applying firmware updates, including version 6.03.03 for D220/D340 and version 7.00.11 for related D440 models, to mitigate the vulnerability.

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2025-2179

Vulnerability details

SQL Injection vulnerability exists in STEALTHONE D220/D340 provided by Y'S corporation. An attacker who can access the affected product may obtain the administrative password of the web management page.

CWE(s): CWE-89

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

T1212 Exploitation for Credential Access Credential Access

Adversaries may exploit software vulnerabilities in an attempt to collect credentials.

attack.mitre.org →

Why these techniques?

SQL injection in public web management interface directly enables remote unauthenticated exploitation of a public-facing app (T1190) and credential extraction (T1212).

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

CVEs Like This One

CVE-2026-32714Shared CWE-89

CVE-2026-25773Shared CWE-89

CVE-2015-20121Shared CWE-89

CVE-2019-25539Shared CWE-89

CVE-2026-39334Shared CWE-89

CVE-2024-13488Shared CWE-89

CVE-2026-20002Shared CWE-89

CVE-2025-1446Shared CWE-89

CVE-2025-22699Shared CWE-89

CVE-2026-36232Shared CWE-89

Affected Assets

Jvn

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inferred from references and description; NVD did not file a CPE for this CVE

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match

prevent

Directly mitigates SQL injection by requiring validation of all inputs to the web management page, preventing malicious SQL payloads from extracting credentials.

SI-2 Flaw Remediation good match

prevent

Ensures timely flaw remediation through firmware updates specifically recommended by the vendor to fix the SQL injection vulnerability.

RA-5 Vulnerability Monitoring and Scanning partial match

detect

Enables detection of the SQL injection vulnerability via regular vulnerability scanning of the affected STEALTHONE devices.