EUVD-2026-89176

The TFTP server accepts a DATA datagram of any size. The dispatcher rejects datagrams shorter than four bytes nxdtftpserver.c:1037 and nothing anywhere checks an upper bound, in particular not against the protocol maximum of 4 + NXTFTPFILETRANSFERMAX. Two things follow from that one missing check...

CVE-2026-102713: Out-of-bounds Read

The TFTP server accepts a DATA datagram of any size. The dispatcher rejects datagrams shorter than four bytes nxdtftpserver.c:1037 and nothing anywhere checks an upper bound, in particular not against the protocol maximum of 4 + NXTFTPFILETRANSFERMAX. Two things follow from that one missing check...