LOYTEC L-IP BACnet/IP Routers Improper Privilege Management (CVE-2026-12502)

A local attacker who is a member of the 'superadmin' group can reset the password of any LARM user on a LOYTEC L-IP BACnet/IP router, including the 'larmapp' service account, via the 'set-passwd' subcommand of the '/usr/bin/ltsudo' utility. This bypasses the authorization checks that should limit...

LOYTEC L-IP BACnet/IP Routers Stack-based Buffer Overflow (CVE-2026-55728)

The 'cmdipaddrconflict' subcommand of the SUID-root '/usr/bin/ltsudo' utility on a LOYTEC L-IP BACnet/IP router copies a user-supplied network interface name into a fixed 20-byte stack buffer using 'strcpy' without bounds checking. A 'superadmin'-group attacker can supply an overly long interface...

CVE-2026-55728

Stack-based Buffer Overflow CWE-121 in /usr/bin/ltsudo cmdipaddrconflict in Loytec LIP-ME201C, L-INX, L-GATE, L-ROC, L-IOB, L-DALI, L-VIS and L-PAD through 8.4.16 on LINX-A64 allows a superadmin-group attacker to trigger a SUID-root process abort or potentially elevate privileges via an overly lo...

CVE-2026-55728

CVE-2026-55728 describes a stack-based buffer overflow in Loytec LINX firmware: the vulnerable path is /usr/bin/ltsudo with the cmd_ipaddr_conflict function, affecting LINX-A64 devices (LIP-ME201C, L-INX, L-GATE, L-ROC, L-IOB, L-DALI, L-VIS, L-PAD) up to firmware version 8.4.16. The underlying fl...

CVE-2026-55728 Loytec LINX firmware: Stack-based Buffer Overflow in cmd_ipaddr_conflict

Stack-based Buffer Overflow CWE-121 in /usr/bin/ltsudo cmdipaddrconflict in Loytec LIP-ME201C, L-INX, L-GATE, L-ROC, L-IOB, L-DALI, L-VIS and L-PAD through 8.4.16 on LINX-A64 allows a superadmin-group attacker to trigger a SUID-root process abort or potentially elevate privileges via an overly lo...

EUVD-2026-48593

Stack-based Buffer Overflow CWE-121 in /usr/bin/ltsudo cmdipaddrconflict in Loytec LIP-ME201C, L-INX, L-GATE, L-ROC, L-IOB, L-DALI, L-VIS and L-PAD through 8.4.16 on LINX-A64 allows a superadmin-group attacker to trigger a SUID-root process abort or potentially elevate privileges via an overly lo...

CVE-2026-55728

Stack-based Buffer Overflow CWE-121 in /usr/bin/ltsudo cmdipaddrconflict in Loytec LIP-ME201C, L-INX, L-GATE, L-ROC, L-IOB, L-DALI, L-VIS and L-PAD through 8.4.16 on LINX-A64 allows a superadmin-group attacker to trigger a SUID-root process abort or potentially elevate privileges via an overly lo...

CVE-2026-12502

Improper Privilege Management CWE-269 in /usr/bin/ltsudo in Loytec LIP-ME201C, L-INX, L-GATE, L-ROC, L-IOB, L-DALI, L-VIS and L-PAD through 8.4.16 on LINX-A64 allows a superadmin-group attacker to reset the password of any LARM user including the larmapp service account via the set-passwd...

PT-2026-64300

Name of the Vulnerable Software and Affected Versions Loytec LIP-ME201C versions prior to 8.4.17 Loytec L-INX versions prior to 8.4.17 Loytec L-GATE versions prior to 8.4.17 Loytec L-ROC versions prior to 8.4.17 Loytec L-IOB versions prior to 8.4.17 Loytec L-DALI versions prior to 8.4.17 Loytec...