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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00322.

Exploitation none

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Loytec LIP-ME20xC unaffected
Version Status Constraints
0 affected ≤ 8.4.16
Loytec L-INX unaffected
Version Status Constraints
0 affected ≤ 8.4.16
Loytec L-GATE unaffected
Version Status Constraints
0 affected ≤ 8.4.16
Loytec L-ROC unaffected
Version Status Constraints
0 affected ≤ 8.4.16
Loytec L-IOB unaffected
Version Status Constraints
0 affected ≤ 8.4.16
Loytec L-DALI unaffected
Version Status Constraints
0 affected ≤ 8.4.16
Loytec L-VIS unaffected
Version Status Constraints
0 affected ≤ 8.4.16
Loytec L-PAD unaffected
Version Status Constraints
0 affected ≤ 8.4.16

No data.

No data.

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Vendors Products
Loytec Subscribe
L-dali Subscribe
L-gate Subscribe
L-inx Subscribe
L-iob Subscribe
L-pad Subscribe
L-roc Subscribe
L-vis Subscribe
Lip-me20xc Subscribe

Project Subscriptions

Vendors Products
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L-dali Subscribe
L-gate Subscribe
L-inx Subscribe
L-iob Subscribe
L-pad Subscribe
L-roc Subscribe
L-vis Subscribe
Lip-me20xc Subscribe
Advisories

No advisories yet.

Fixes

Solution

Upgrade to firmware version 8.4.18.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.loytec.com/support/product-security/advisories/8531-dibt-cve-20260601-0003-unchecked-input-for-loop-condition-cwe-606-in-the-snmp-agent-medium cve-icon
History

Mon, 27 Jul 2026 15:45:00 +0000

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

Fri, 24 Jul 2026 18:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Loytec LINX firmware: Unchecked input for loop condition in the SNMP agent
Weaknesses CWE-606
References
Metrics cvssV4_0

{'score': 6.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: NCSC.ch

Published:

Updated: 2026-07-24T14:54:34.007Z

Reserved: 2026-06-17T09:48:05.268Z

Link: CVE-2026-55731

cve-icon Vulnrichment

Updated: 2026-07-24T14:54:26.562Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-27T15:23:24Z

Weaknesses