CVE-2026-55728

LOW

Loytec LINX firmware: Stack-based Buffer Overflow in cmd_ipaddr_conflict

Title source: cna

Description

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.

References (1)

Core 1

Core References

Vendor Advisory vendor-advisory

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

Scores

CVSS v4 3.8

EPSS 0.0011

EPSS Percentile 1.7%

CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-121

Status published

Products (8)

Loytec/L-DALI < 8.4.16

Loytec/L-GATE < 8.4.16

Loytec/L-INX < 8.4.16

Loytec/L-IOB < 8.4.16

Loytec/L-PAD < 8.4.16

Loytec/L-ROC < 8.4.16

Loytec/L-VIS < 8.4.16

Loytec/LIP-ME20xC < 8.4.16

Published Jul 24, 2026

Tracked Since Jul 24, 2026