CVE-2026-27552: Unauthorized IODD File Upload due to Improper Authorization

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% 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-863

Description

A low-privileged remote attacker can exploit improper authorization in the /index.php/attached_devices_tab/do_upload endpoint to upload IODD files to the device, potentially altering device behavior or causing system crashes.

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

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