CVE-2020-5639
CVE-2020-5639 is a critical-severity vulnerability in Soliton Filezen 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-22.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 10.0
- EPSS exploit prediction: 5% (91st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-22
- Affected product: Soliton Filezen
- Published:
- Last modified:
Description
Directory traversal vulnerability in FileZen versions from V3.0.0 to V4.2.2 allows remote attackers to upload an arbitrary file in a specific directory via unspecified vectors. As a result, an arbitrary OS command may be executed.
Frequently asked questions
- What is CVE-2020-5639?
- Directory traversal vulnerability in FileZen versions from V3.0.0 to V4.2.2 allows remote attackers to upload an arbitrary file in a specific directory via unspecified vectors. As a result, an arbitrary OS command may be executed.
- How severe is CVE-2020-5639?
- CVE-2020-5639 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-2020-5639 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-5639?
- CVE-2020-5639 affects Soliton Filezen. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-5639?
- 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.
- When was CVE-2020-5639 published?
- CVE-2020-5639 was published on 2020-12-14 and last updated on 2026-06-17.
References
- https://jvn.jp/en/jp/JVN12884935/index.html
- https://jvn.jp/jp/JVN12884935/index.html
- https://www.soliton.co.jp/support/2020/004278.html
Affected products (1)
- cpe:2.3:a:soliton:filezen:*:*:*:*:*:*:*:*
More vulnerabilities in Soliton Filezen
- CVE-2018-0694 — Critical (CVSS 9.8): FileZen V3.0.0 to V4.2.1 allows remote attackers to execute arbitrary OS commands via unspecified vectors.
- CVE-2026-25108 — High (CVSS 8.8): FileZen contains an OS command injection vulnerability. When FileZen Antivirus Check Option is enabled, a logged-in…
- CVE-2018-0693 — High (CVSS 7.5): Directory traversal vulnerability in FileZen V3.0.0 to V4.2.1 allows remote attackers to upload an arbitrary file in…
- CVE-2021-20655 — High (CVSS 7.2): FileZen (V3.0.0 to V4.2.7 and V5.0.0 to V5.0.2) allows a remote attacker with administrator rights to execute arbitrary…
All CVEs affecting Soliton Filezen →
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