EUVD-2026-80248
GHSA-9q7j-q2f8-2hh2
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Unauthenticated network upload of a malicious IODD yields root code execution with full C/I/A impact, so AV:N/AC:L/PR:N/UI:N and all-High.
Primary rating from Vendor (CERTVDE).
CVSS VectorNVD
Lifecycle Timeline
3DescriptionNVD
An unauthenticated remote attacker can upload a malicious IODD file that places and executes a shell script with root privileges. The shell script remains active even after a reboot.
AnalysisAI
Root-level remote code execution affects Pepperl+Fuchs ICE2/ICE3-series and Phoenix Contact IOL-MA8 IO-Link master gateways, where an unauthenticated attacker uploads a crafted IODD (IO Device Description) file that drops and executes an arbitrary shell script as root. The injected script survives reboot, granting persistent full control of the industrial device. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires network reach to the affected IO-Link master's IODD upload/import interface and the ability to submit a crafted IODD file - no authentication (PR:N) and no user interaction (UI:N) are needed against a default configuration. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H = 9.8) indicates trivial, unauthenticated, network-reachable exploitation with total impact - a genuine priority for any environment where these gateways are network-exposed. … 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 | Apply the firmware updates referenced in the CERT@VDE advisories (VDE-2026-014, VDE-2026-027, VDE-2026-028 at https://www.certvde.com/en/advisories/); the supplied data does not include an exact fixed firmware version, so treat this as 'patch available per vendor advisory' and confirm the specific target build with Pepperl+Fuchs and Phoenix Contact before deployment. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Complete an inventory of all Pepperl+Fuchs ICE2/ICE3 and Phoenix Contact IOL-MA8 devices; prioritize network isolation or restrict access via firewall rules blocking IODD upload mechanisms on internet-facing or untrusted network segments. …
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External POC / Exploit Code
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