CVE-2026-55728

Loytec LINX firmware: Stack-based Buffer Overflow in cmd_ipaddr_conflict

State: Published
Severity: 3.8 Low
Published: Jul 24, 2026
Updated: Jul 24, 2026
Reserved: Jun 17, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	3.8 Low	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	NCSC.ch

Weaknesses

CWE-121 Stack-based buffer overflow

Affected Products

Product	Versions
LIP-ME20xCLoytec	8.4.16 and earlierAffected
L-INXLoytec	8.4.16 and earlierAffected
L-GATELoytec	8.4.16 and earlierAffected
L-ROCLoytec	8.4.16 and earlierAffected
L-IOBLoytec	8.4.16 and earlierAffected
L-DALILoytec	8.4.16 and earlierAffected
L-VISLoytec	8.4.16 and earlierAffected
L-PADLoytec	8.4.16 and earlierAffected

References

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

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