by Kastro
Paper/Archive/CVE-2026-3587

CVE-2026-3587

WAGO Lean Managed Switch 852-1812 — Hidden CLI Function Allows Root Access

EPSS 0.7%CVSS 10.0
critical.is priorityof 100
41
CVSS 10.0 (CNA)10.0 / 10 × 3030.0Not in CISA KEV+300.0EPSS percentile 52.8.528 × 2010.6No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

An unauthenticated remote attacker can exploit a hidden function in the CLI prompt to escape the restricted interface, leading to full compromise of the device.

Affected

ProductAffectedFixed inSource
Lean Managed Switch 852-18120.0.0 – < V1.2.1.S0V1.2.1.S0CNA
Lean Managed Switch 852-18130.0.0 – < V1.2.1.S0V1.2.1.S0CNA
Lean Managed Switch 852-1813-000-0010.0.0 – < V1.2.3.S0V1.2.3.S0CNA
Lean Managed Switch 852-18160.0.0 – < V1.2.1.S0V1.2.1.S0CNA
Industrial Managed Switch 852-3030.0.0 – < V1.2.8.S0V1.2.8.S0CNA
Industrial Managed Switch 852-13050.0.0 – < V1.2.0.S0V1.2.0.S0CNA
Industrial Managed Switch 852-1305-000-0010.0.0 – < V1.2.0.S0V1.2.0.S0CNA
Industrial Managed Switch 852-1505-000-0010.0.0 – < V1.2.0.S0V1.2.0.S0CNA
Industrial Managed Switch 852-15050.0.0 – < V1.1.9.S0V1.1.9.S0CNA
Industrial Managed Switch 852-6020.0.0 – < V1.0.6.S0V1.0.6.S0CNA
Industrial Managed Switch 852-6030.0.0 – < V1.0.6.S0V1.0.6.S0CNA
Industrial Managed Switch 852-16050.0.0 – < V1.2.5.S0V1.2.5.S0CNA

Scores by source

CERTVDE (CNA)10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refcertvde.com/de/advisories/VDE-2026-020