CVE Catalog

CVE-2026-55731

MediumCVSS 6.6
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.32%

25th percentile - higher than 25% of all known CVEs

Summary

Vulnerability in the SNMP agent in Loytec devices (LIP-ME201C, L-INX, L-GATE, L-ROC, L-IOB, L-DALI, L-VIS, L-PAD) up to version 8.4.16 on LINX-A64. Unchecked input for loop condition (CWE-606) allows an unauthenticated remote attacker to cause persistent denial of service via a crafted SNMP GETNEXT request with a large OID component.

Risk Assessment

An attacker can cause CPU exhaustion on the device, leading to persistent unavailability of services and control systems.

Recommendation

Update the Loytec device firmware to a patched version and restrict SNMP agent access to trusted hosts only.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS