← All Advisories

A Manipulated Schema Path Parameter in Pepperl+Fuchs ICE-Series IO-Link Masters' Diagnostics Endpoint Exposes Every User's Password Hash to Low-Privileged Accounts

Last refreshed2026-09-30

Status: UPDATED  |  Advisory ID: CVE-2026-27553

Key Details

CVECVE-2026-27553
CVSS Score / Version6.5 (Medium) / CVSS v3.1
Updated2026-09-19
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS Proseattack vector is network; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is none; availability impact is none.
Affected productssee table below
Classified asCWE-497 (Exposure of Sensitive System Information to an Unauthorized Control Sphere)

Affected Products, Subsystems & Sectors

VendorProductAffected VersionsPatch Status
Pepperl+FuchsICE2-8IOL-K45P-RJ45
Pepperl+FuchsICE2-8IOL1-G65L-V1D
Pepperl+FuchsICE2-8IOL-G65L-V1D
Pepperl+FuchsICE2-8IOL-K45S-RJ45
Pepperl+FuchsICE3-8IOL1-G65L-V1D
Pepperl+FuchsICE3-8IOL-G65L-V1D
Pepperl+FuchsICE3-8IOL-G65L-V1D-Y
Pepperl+FuchsICE3-8IOL-K45P-RJ45
Pepperl+FuchsICE3-8IOL-K45S-RJ45
Phoenix ContactIOL MA8 PN DI8
Phoenix ContactIOL MA8 EIP DI8
Carlo Gavazzi AutomationYL212CEI8M1IO
Carlo Gavazzi AutomationYN115CEI8RPIO
Carlo Gavazzi AutomationYL212CPN8M1IO
Carlo Gavazzi AutomationYN115CPN8RPIO
SubsystemsGeneral OT
SectorsMultiple

What to Know

A low-privileged remote attacker can manipulate the schema path parameter in the /index.php/diagnostics_tab/ajax_diag_table_rows endpoint using a valid user cookie allowing disclosure of all user password hashes.

What to Do

Monitor Pepperl+Fuchs, Phoenix Contact, and Carlo Gavazzi Automation's web pages for any future patch releases.

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-27553
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-27553

About

OT-Advisories  ·  CVE  ·  NVD  ·  CVSS  ·  KEV  ·  EPSS  ·  CWE