What’s Vulnerable › Vulnerabilities

CVE-2026-27546: Authentication Bypass in _account_log

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-16 · updated 2026-09-16
• Weakness: CWE-288

Description

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

How to fix

Upgrade to a fixed version: Carlo Gavazzi Automation YL212CEI8M1IO 1.7.4; Carlo Gavazzi Automation YL212CPN8M1IO 1.7.4; Carlo Gavazzi Automation YN115CEI8RPIO 1.7.4; Carlo Gavazzi Automation YN115CPN8RPIO 1.7.4; Pepperl+Fuchs ICE2-8IOL-G65L-V1D 1.7.4; Pepperl+Fuchs ICE2-8IOL-K45P-RJ45 1.7.4; Pepperl+Fuchs ICE2-8IOL-K45S-RJ45 1.7.4; Pepperl+Fuchs ICE2-8IOL1-G65L-V1D 1.7.4; Pepperl+Fuchs ICE3-8IOL-G65L-V1D 1.7.4; Pepperl+Fuchs ICE3-8IOL-G65L-V1D-Y 1.7.4; Pepperl+Fuchs ICE3-8IOL-K45P-RJ45 1.7.4; Pepperl+Fuchs ICE3-8IOL-K45S-RJ45 1.7.4. Check the vendor advisory for mitigations.

References

• https://www.certvde.com/en/advisories/VDE-2026-014/
• https://www.certvde.com/en/advisories/VDE-2026-027/
• https://www.certvde.com/en/advisories/VDE-2026-028/

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