CVE-2026-27546: Carlo Gavazzi Automation YL212CEI8M1IO

Critical severity, CVSS 9.8. EPSS: 1% chance of exploitation in the next 30 days.

An unauthenticated remote attacker can exploit an authentication bypass in the _account_log function to log in as an admin, even when accounts are properly configured.

Affected products

• Carlo Gavazzi Automation YL212CEI8M1IO: from 1.0.0, before 1.7.4 (fixed in 1.7.4)
• Carlo Gavazzi Automation YL212CPN8M1IO: from 1.0.0, before 1.7.4 (fixed in 1.7.4)
• Carlo Gavazzi Automation YN115CEI8RPIO: from 1.0.0, before 1.7.4 (fixed in 1.7.4)
• Carlo Gavazzi Automation YN115CPN8RPIO: from 1.0.0, before 1.7.4 (fixed in 1.7.4)
• Pepperl+fuchs ICE2-8iol-g65l-v1d: from 1.0.0, before 1.7.4 (fixed in 1.7.4)
• Pepperl+fuchs ICE2-8iol-k45p-RJ45: from 1.0.0, before 1.7.4 (fixed in 1.7.4)
• Pepperl+fuchs ICE2-8iol-k45s-RJ45: from 1.0.0, before 1.7.4 (fixed in 1.7.4)
• Pepperl+fuchs ICE2-8iol1-g65l-v1d: from 1.0.0, before 1.7.4 (fixed in 1.7.4)
• Pepperl+fuchs ICE3-8iol-g65l-v1d: from 1.0.0, before 1.7.4 (fixed in 1.7.4)
• Pepperl+fuchs ICE3-8iol-g65l-v1d-Y: from 1.0.0, before 1.7.4 (fixed in 1.7.4)
• Pepperl+fuchs ICE3-8iol-k45p-RJ45: from 1.0.0, before 1.7.4 (fixed in 1.7.4)
• Pepperl+fuchs ICE3-8iol-k45s-RJ45: from 1.0.0, before 1.7.4 (fixed in 1.7.4)
• Pepperl+fuchs ICE3-8iol1-g65l-v1d: from 1.0.0, before 1.7.4 (fixed in 1.7.4)
• Phoenix Contact Iol MA8 Eip DI8: from 1.0.0, before 1.7.4 (fixed in 1.7.4)
• Phoenix Contact Iol MA8 Pn DI8: from 1.0.0, before 1.7.4 (fixed in 1.7.4)

Published 2026-09-16. Last modified 2026-09-16.