PatchTheCVE: open tftp serverhttps://patchthecve.com/CVEs with upgrade or downgrade fix stepsCVE-2020-26130: Issues were discovered in Open TFTP Server multithreaded 1.66 and Open TFTP Server single port 1.66https://patchthecve.com/cve/CVE-2020-26130.htmlhttps://patchthecve.com/cve/CVE-2020-26130.htmlWed, 17 Jun 2026 03:07:38 +0000HIGH 7.8: Issues were discovered in Open TFTP Server multithreaded 1.66 and Open TFTP Server single port 1.66. Due to insufficient access restrictions in the default installation directory, an attacker can elevate privileges by replacing the OpenTFTPServerMT.exe or the OpenTFTPServerSP.exe binary.CVE-2019-12568: Stack-based overflow vulnerability in the logMess function in Open TFTP Server SP 1.66 and earlier allows remohttps://patchthecve.com/cve/CVE-2019-12568.htmlhttps://patchthecve.com/cve/CVE-2019-12568.htmlWed, 17 Jun 2026 02:14:52 +0000CRITICAL 9.8: Stack-based overflow vulnerability in the logMess function in Open TFTP Server SP 1.66 and earlier allows remote attackers to perform a denial of service or execute arbitrary code via a long TFTP error packet, a different vulnerability than CVE-2018-10387 and CVE-2019-12567.CVE-2019-12567: Stack-based overflow vulnerability in the logMess function in Open TFTP Server MT 1.65 and earlier allows remohttps://patchthecve.com/cve/CVE-2019-12567.htmlhttps://patchthecve.com/cve/CVE-2019-12567.htmlWed, 17 Jun 2026 02:14:52 +0000CRITICAL 9.8: Stack-based overflow vulnerability in the logMess function in Open TFTP Server MT 1.65 and earlier allows remote attackers to perform a denial of service or execute arbitrary code via a long TFTP error packet, a different vulnerability than CVE-2018-10387 and CVE-2019-12568.CVE-2018-10389: Format string vulnerability in the logMess function in TFTP Server MT 1.65 and earlier allows remote attackershttps://patchthecve.com/cve/CVE-2018-10389.htmlhttps://patchthecve.com/cve/CVE-2018-10389.htmlWed, 17 Jun 2026 01:33:57 +0000CRITICAL 9.8: Format string vulnerability in the logMess function in TFTP Server MT 1.65 and earlier allows remote attackers to perform a denial of service or execute arbitrary code via format string sequences in a TFTP error packet.CVE-2018-10388: Format string vulnerability in the logMess function in TFTP Server SP 1.66 and earlier allows remote attackershttps://patchthecve.com/cve/CVE-2018-10388.htmlhttps://patchthecve.com/cve/CVE-2018-10388.htmlWed, 17 Jun 2026 01:33:57 +0000CRITICAL 9.8: Format string vulnerability in the logMess function in TFTP Server SP 1.66 and earlier allows remote attackers to perform a denial of service or execute arbitrary code via format string sequences in a TFTP error packet.CVE-2018-10387: Heap-based overflow vulnerability in TFTP Server SP 1.66 and earlier allows remote attackers to perform a denihttps://patchthecve.com/cve/CVE-2018-10387.htmlhttps://patchthecve.com/cve/CVE-2018-10387.htmlWed, 17 Jun 2026 01:33:57 +0000CRITICAL 9.8: Heap-based overflow vulnerability in TFTP Server SP 1.66 and earlier allows remote attackers to perform a denial of service or possibly execute arbitrary code via a long TFTP error packet, a different vulnerability than CVE-2008-2161.