CVE-2020-28864
CVE-2020-28864 is a critical-severity vulnerability in Winscp 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-120.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 7.5
- EPSS exploit prediction: 3% (85th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-120
- Affected product: Winscp
- Published:
- Last modified:
Description
Buffer overflow in WinSCP 5.17.8 allows a malicious FTP server to cause a denial of service or possibly have other unspecified impact via a long file name.
Frequently asked questions
- What is CVE-2020-28864?
- Buffer overflow in WinSCP 5.17.8 allows a malicious FTP server to cause a denial of service or possibly have other unspecified impact via a long file name.
- How severe is CVE-2020-28864?
- CVE-2020-28864 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-2020-28864 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-28864?
- CVE-2020-28864 affects Winscp. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-28864?
- 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-2020-28864 published?
- CVE-2020-28864 was published on 2020-11-23 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:winscp:winscp:5.17.8:*:*:*:*:*:*:*
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