https://patchthecve.com/CVEs with upgrade or downgrade fix stepshttps://patchthecve.com/cve/CVE-2020-6835.htmlhttps://patchthecve.com/cve/CVE-2020-6835.htmlWed, 17 Jun 2026 03:23:53 +0000CRITICAL 9.8: An issue was discovered in Bftpd before 5.4. There is a heap-based off-by-one error during file-transfer error checking.https://patchthecve.com/cve/CVE-2020-6162.htmlhttps://patchthecve.com/cve/CVE-2020-6162.htmlWed, 17 Jun 2026 03:22:48 +0000CRITICAL 9.1: An issue was discovered in Bftpd 5.3. Under certain circumstances, an out-of-bounds read is triggered due to an uninitialized value. The daemon crashes at startup in the hidegroups_init function in dirlist.c.https://patchthecve.com/cve/CVE-2017-16892.htmlhttps://patchthecve.com/cve/CVE-2017-16892.htmlWed, 17 Jun 2026 01:10:06 +0000HIGH 7.5: In Bftpd before 4.7, there is a memory leak in the file rename function.