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    CVE-2026-55731

    Unchecked input for loop condition (CWE-606) in the SNMP agent 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 an unauthenticated remote attacker to cause persistent denial of service (CPU exhaustion) via a crafted SNMP GETNEXT request with a large OID component.

    Published:Jul 24, 2026
    Last Modified:Jul 27, 2026
    EPS:Jul 24, 2026
    EPSS Score:0.00322
    CVSS Score:6.6

    Affected Products

    Vendor
    Loytec
    Product
    L-dali
    Vendor
    Loytec
    Product
    L-gate
    Vendor
    Loytec
    Product
    L-inx
    Vendor
    Loytec
    Product
    L-iob
    Vendor
    Loytec
    Product
    L-pad
    Vendor
    Loytec
    Product
    L-roc
    Vendor
    Loytec
    Product
    L-vis
    Vendor
    Loytec
    Product
    Lip-me20xc

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-55732 (CVSS 8.7) — Out-of-bounds Read (CWE-125) in BACnet packet parsing (`bacdt_datetime_to_tod`) in Loytec LIP-ME201C, L-INX, L…
    CVE-2026-55728 (CVSS 3.8) — Stack-based Buffer Overflow (CWE-121) in `/usr/bin/ltsudo` `cmd_ipaddr_conflict` in Loytec LIP-ME201C, L-INX,…
    CVE-2026-12504 (CVSS 8.4) — Improper Authentication (CWE-287) in the PAM configuration in Loytec LIP-ME201C, L-INX, L-GATE, L-ROC, L-IOB, …
    CVE-2026-12503 (CVSS 9.2) — Improper Link Resolution (CWE-59) in `/usr/bin/larm_starter` in Loytec L-INX, L-GATE, L-ROC, L-IOB, L-DALI, L-…
    CVE-2026-12502 (CVSS 8.4) — Improper Privilege Management (CWE-269) in `/usr/bin/ltsudo` in Loytec LIP-ME201C, L-INX, L-GATE, L-ROC, L-IOB…
    CVE-2026-12496 (CVSS 8.7) — Stored Cross-Site Scripting (CWE-79) in the OPC XML-DA server statistics in Loytec LIP-ME201C, L-INX, L-GATE, …

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High