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

Description (CNA)

Stack-based Buffer Overflow (CWE-121) in `/usr/bin/ltsudo` `cmd_ipaddr_conflict` 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 long interface-name argument.

Affected (CNA)

Vendor / product	Versions
Loytec / LIP-ME20xC	affected 0 through 8.4.16
Loytec / L-INX	affected 0 through 8.4.16
Loytec / L-GATE	affected 0 through 8.4.16
Loytec / L-ROC	affected 0 through 8.4.16
Loytec / L-IOB	affected 0 through 8.4.16
Loytec / L-DALI	affected 0 through 8.4.16
Loytec / L-VIS	affected 0 through 8.4.16
Loytec / L-PAD	affected 0 through 8.4.16

CWE

CWE-121

References

https://www.loytec.com/support/product-security/advisories/8523-dibt-cve-20260526-0005-stack-buffer-overflow-in-cmd_ipaddr_conflict-low

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.