What’s Vulnerable › Vulnerabilities

CVE-2020-6835

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-01-10 · updated 2026-06-17
• Weakness: CWE-193

Description

An issue was discovered in Bftpd before 5.4. There is a heap-based off-by-one error during file-transfer error checking.

Affected products

• Bftpd Project Bftpd: before 5.4 — fixed in 5.4

How to fix

Upgrade to a fixed version: Bftpd Project Bftpd 5.4. Check the vendor advisory for mitigations.

References

• http://bftpd.sourceforge.net/news.html#302460
• https://fossies.org/linux/bftpd/CHANGELOG
• http://bftpd.sourceforge.net/news.html#302460
• https://fossies.org/linux/bftpd/CHANGELOG

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