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Pepperl+Fuchs ICE IO-Link CVE-2026-27558

| EUVDEUVD-2026-80241 HIGH
OS Command Injection (CWE-78)
2026-09-16 CERTVDE GHSA-23xw-rw6g-gx4m
PHP Command Injection Ice2 8Iol1 G65L V1D Ice2 8Iol G65L V1D Ice2 8Iol K45P Rj45 Ice2 8Iol K45S Rj45 Ice3 8Iol1 G65L V1D Ice3 8Iol G65L V1D Ice3 8Iol G65L V1D Y Ice3 8Iol K45P Rj45 Ice3 8Iol K45S Rj45 Iol Ma8 Pn Di8 Iol Ma8 Eip Di8 Yl212Cei8M1Io Yn115Cei8Rpio Yl212Cpn8M1Io Yn115Cpn8Rpio
8.8
CVSS 3.1 · NVD
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Severity by source

Vendor (CERTVDE) PRIMARY
HIGH
qualitative
NVD
8.8 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
vuln.today AI
8.8 HIGH

Network-accessible web interface, operator credentials satisfy PR:L, no interaction or special race condition needed; root execution yields full C/I/A compromise of device.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (CERTVDE).

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Patch available
Sep 16, 2026 - 09:16 EUVD
Analysis Generated
Sep 16, 2026 - 08:24 vuln.today
CVE Published
Sep 16, 2026 - 07:50 nvd
HIGH 8.8

DescriptionNVD

A low-privileged remote attacker can exploit a command injection vulnerability in the /index.php/attached_devices_tab/ajax_remove_uploaded_iodd_files endpoint using operator credentials allowing execution of commands with root privileges on the device.

AnalysisAI

Command injection via a PHP web management endpoint on Pepperl+Fuchs ICE2/ICE3 series IO-Link Masters and Phoenix Contact IOL_MA8_PN_DI8 allows an authenticated operator-level attacker to execute arbitrary OS commands with root privileges on the device. The vulnerable endpoint, /index.php/attached_devices_tab/ajax_remove_uploaded_iodd_files, passes user-supplied filenames to an underlying OS command without sanitization, enabling full device compromise. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Vulnerability AssessmentAI

Exploitation Exploitation requires valid operator-level credentials for the device web management interface (PR:L per CVSS). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 8.8 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) is well-calibrated for this vulnerability: network-accessible, low complexity, and requiring only operator credentials-a low bar in many industrial deployments where shared accounts are common. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Check the three CERTVDE advisories for vendor-specific patch availability and firmware upgrade instructions: VDE-2026-014 (https://www.certvde.com/en/advisories/VDE-2026-014/), VDE-2026-027 (https://www.certvde.com/en/advisories/VDE-2026-027/), and VDE-2026-028 (https://www.certvde.com/en/advisories/VDE-2026-028/). … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 24 hours, identify all deployed Pepperl+Fuchs ICE2, ICE3, and Phoenix Contact IOL_MA8_PN_DI8 devices in your OT environment and document their firmware versions and network roles. …

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Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-27558 vulnerability details – vuln.today
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