CVE-2026-55728lowCWE-121

CVE-2026-55728: low-severity vulnerability in Loytec L-INX

Loytec LINX firmware: Stack-based Buffer Overflow in cmd_ipaddr_conflict

Published

Follow this CVE+ Monitor L-DALI+ Monitor L-GATE

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

8Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 3.8epss 0.2%
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.
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
Affected products
Loytec · L-DALILoytec · L-GATELoytec · L-INXLoytec · L-IOBLoytec · LIP-ME20xCLoytec · L-PADLoytec · L-ROCLoytec · L-VIS
Related CVEs — Loytec L-INX

In the same product, most dangerous first.

CVE-2026-12496HIGHLoytec LINX firmware: Unauthenticated stored XSS in OPC XML-DA serverEPSS 0.6%CVE-2026-55732HIGHLoytec LINX firmware: Out-of-bounds Read in BACnet packet parsing (bacdt_datetime_to_tod)EPSS 0.5%CVE-2026-55731MEDIUMLoytec LINX firmware: Unchecked input for loop condition in the SNMP agentEPSS 0.5%CVE-2026-12504HIGHLoytec LINX firmware: Improper Authentication in PAM configurationEPSS 0.2%CVE-2026-12503CRITICALLoytec LINX firmware: Improper Link Resolution in /usr/bin/larm_starterEPSS 0.2%CVE-2026-12502HIGHLoytec LINX firmware: Improper Privilege Management in /usr/bin/ltsudoEPSS 0.2%