CyberSecBulletin
CVE-2026-27557NVD status: Awaiting Analysis

ICE2-8IOL1-G65L-V1D: Path Traversal: '.../...//'

Published Updated By the CyberSecBulletin desk

CVE-2026-27557 is a high-severity path traversal: '.../...//' vulnerability in ICE2-8IOL1-G65L-V1D from Pepperl+Fuchs, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. The record lists version 1.7.4 as the first without the flaw, so updating ICE2-8IOL1-G65L-V1D to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.71% chance of exploitation within 30 days, higher than 54% of scored CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Update ICE2-8IOL1-G65L-V1D to 1.7.4 or a later version.
  2. Update ICE2-8IOL-G65L-V1D to 1.7.4 or a later version.
  3. Update ICE2-8IOL-K45P-RJ45 to 1.7.4 or a later version.
  4. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.

Affected products and versions

VendorProductAffected versionsFixed in
Pepperl+FuchsICE2-8IOL1-G65L-V1D1.0.0 up to, but not including, 1.7.41.7.4
Pepperl+FuchsICE2-8IOL-G65L-V1D1.0.0 up to, but not including, 1.7.41.7.4
Pepperl+FuchsICE2-8IOL-K45P-RJ451.0.0 up to, but not including, 1.7.41.7.4
Pepperl+FuchsICE2-8IOL-K45S-RJ451.0.0 up to, but not including, 1.7.41.7.4
Pepperl+FuchsICE3-8IOL1-G65L-V1D1.0.0 up to, but not including, 1.7.41.7.4
Pepperl+FuchsICE3-8IOL-G65L-V1D1.0.0 up to, but not including, 1.7.41.7.4
Pepperl+FuchsICE3-8IOL-G65L-V1D-Y1.0.0 up to, but not including, 1.7.41.7.4
Pepperl+FuchsICE3-8IOL-K45P-RJ451.0.0 up to, but not including, 1.7.41.7.4
Pepperl+FuchsICE3-8IOL-K45S-RJ451.0.0 up to, but not including, 1.7.41.7.4
Phoenix ContactIOL MA8 PN DI81.0.0 up to, but not including, 1.7.41.7.4
Phoenix ContactIOL MA8 EIP DI81.0.0 up to, but not including, 1.7.41.7.4
Carlo Gavazzi AutomationYL212CEI8M1IO1.0.0 up to, but not including, 1.7.41.7.4
Carlo Gavazzi AutomationYN115CEI8RPIO1.0.0 up to, but not including, 1.7.41.7.4
Carlo Gavazzi AutomationYL212CPN8M1IO1.0.0 up to, but not including, 1.7.41.7.4
Carlo Gavazzi AutomationYN115CPN8RPIO1.0.0 up to, but not including, 1.7.41.7.4

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
NoneNo account or login is needed.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
NoneNothing can be modified.
Availability
NoneAvailability is not affected.

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. Scored by CNA (cert.vde.com).

Official description

An unauthenticated remote attacker can exploit a path traversal vulnerability in the /index.php/view_uploaded_iodd_file endpoint allowing the SSH server's private keys to be read.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Path Traversal: '.../...//'

The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize '.../...//' (doubled triple dot slash) sequences that can resolve to a location that is outside of that directory.

How developers prevent this class of flaw

  • Inputs should be decoded and canonicalized to the application's current internal representation before being validated (CWE-180). Make sure that the application does not decode the same input twice (CWE-174). Such errors could be used to bypass allowlist validation schemes by introducing dangerous inputs after they have been checked.

More Path Traversal: '.../...//' vulnerabilities (CWE-35)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: partial).

References

Other vulnerabilities in ICE2-8IOL1-G65L-V1D

All ICE2-8IOL1-G65L-V1D vulnerabilities

Recent Path Traversal: '.../...//' vulnerabilities

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