CVE-2025-20055
CVE-2025-20055 is a critical-severity vulnerability with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- EPSS exploit prediction: 1% (63rd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-2145
- Weakness: CWE-78
- Published:
- Last modified:
Description
OS command injection vulnerability exists in network storage servers STEALTHONE D220/D340 provided by Y'S corporation. An attacker who can access the affected product may execute an arbitrary OS command.
Frequently asked questions
- What is CVE-2025-20055?
- OS command injection vulnerability exists in network storage servers STEALTHONE D220/D340 provided by Y'S corporation. An attacker who can access the affected product may execute an arbitrary OS command.
- How severe is CVE-2025-20055?
- CVE-2025-20055 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2025-20055 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2025-20055?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- Does CVE-2025-20055 have an EU (EUVD) identifier?
- Yes. CVE-2025-20055 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-2145.
- When was CVE-2025-20055 published?
- CVE-2025-20055 was published on 2025-01-14 and last updated on 2026-06-17.
References
- https://jvn.jp/en/vu/JVNVU99653331/
- 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/
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