PatchTheCVE: qvt nethttps://patchthecve.com/CVEs with upgrade or downgrade fix stepsCVE-2001-0681: Buffer overflow in ftpd in QPC QVT/Net 5.0 and QVT/Term 5.0 allows a remote attacker to cause a denial of servhttps://patchthecve.com/cve/CVE-2001-0681.htmlhttps://patchthecve.com/cve/CVE-2001-0681.htmlTue, 16 Jun 2026 21:54:45 +0000MEDIUM 5.0: Buffer overflow in ftpd in QPC QVT/Net 5.0 and QVT/Term 5.0 allows a remote attacker to cause a denial of service via a long (1) username or (2) password.CVE-2001-0680: Directory traversal vulnerability in ftpd in QPC QVT/Net 4.0 and AVT/Term 5.0 allows a remote attacker to travhttps://patchthecve.com/cve/CVE-2001-0680.htmlhttps://patchthecve.com/cve/CVE-2001-0680.htmlTue, 16 Jun 2026 21:54:45 +0000MEDIUM 5.0: Directory traversal vulnerability in ftpd in QPC QVT/Net 4.0 and AVT/Term 5.0 allows a remote attacker to traverse directories on the web server via a "dot dot" attack in a LIST (ls) command.CVE-2001-0443: Buffer overflow in QPC QVT/Net Popd 4.20 in QVT/Net 5.0 allows remote attackers to cause a denial of service, https://patchthecve.com/cve/CVE-2001-0443.htmlhttps://patchthecve.com/cve/CVE-2001-0443.htmlTue, 16 Jun 2026 21:54:19 +0000HIGH 7.5: Buffer overflow in QPC QVT/Net Popd 4.20 in QVT/Net 5.0 allows remote attackers to cause a denial of service, and possibly execute arbitrary commands, via (1) a long username, or (2) a long password.CVE-1999-1539: Buffer overflow in FTP server in QPC Software's QVT/Term Plus versions 4.2d and 4.3 and QVT/Net 4.3 allows remhttps://patchthecve.com/cve/CVE-1999-1539.htmlhttps://patchthecve.com/cve/CVE-1999-1539.htmlTue, 16 Jun 2026 21:50:40 +0000HIGH 7.5: Buffer overflow in FTP server in QPC Software's QVT/Term Plus versions 4.2d and 4.3 and QVT/Net 4.3 allows remote attackers to cause a denial of service, and possibly execute arbitrary commands, via a long (1) user name or (2) password.