CVE-2026-55728

Loytec LINX firmware: Stack-based Buffer Overflow in cmd_ipaddr_conflict

Published Jul 24, 2026 CVSS 4.0 · 3.8 Low EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

Upgrade to firmware version 8.4.18.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Loytec
Loytec l-dali
Loytec l-gate
Loytec l-inx
Loytec l-iob
Loytec l-pad
Loytec l-roc
Loytec l-vis
Loytec lip-me20xc
Vendors & Products Loytec
Loytec l-dali
Loytec l-gate
Loytec l-inx
Loytec l-iob
Loytec l-pad
Loytec l-roc
Loytec l-vis
Loytec lip-me20xc
Type Values Removed Values Added
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.
Title Loytec LINX firmware: Stack-based Buffer Overflow in cmd_ipaddr_conflict
Weaknesses CWE-121
References
Metrics cvssV4_0

{'score': 3.8, 'vector': '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'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
NCSC.ch
Published
Updated
Jul 24, 2026, 2:56 PM
Reserved
Jun 17, 2026, 9:48 AM
Status
Deferred
Published
Jul 24, 2026, 3:18 PM
Modified
Jul 27, 2026, 8:32 PM