CVE-2026-27561: Pepperl+Fuchs ICE2/ICE3 command injection in /api/iodd/config

CVE-2026-27561 · Severity: high · CVSS 7.2 · Published 2026-09-16

Pepperl+Fuchs ICE2 and ICE3 industrial I/O controllers are vulnerable to command injection attacks when admin credentials are presented. An attacker with valid admin login can send a crafted request to execute arbitrary commands with root privileges on the device, potentially compromising production automation systems and the integrity of controlled processes.

Technologies: Pepperl+Fuchs ICE2-8IOL-G65L-V1D, Pepperl+Fuchs ICE2-8IOL-K45P-RJ45, Pepperl+Fuchs ICE2-8IOL-K45S-RJ45, Pepperl+Fuchs ICE2-8IOL1-G65L-V1D, Pepperl+Fuchs ICE3-8IOL-G65L-V1D, Pepperl+Fuchs ICE3-8IOL-G65L-V1D-Y, Pepperl+Fuchs ICE3-8IOL-K45P-RJ45, Pepperl+Fuchs ICE3-8IOL-K45S-RJ45, Pepperl+Fuchs ICE3-8IOL1-G65L-V1D. Vendors: Pepperl+Fuchs.

Quick answers

Is CVE-2026-27561 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-27561 being exploited in the wild.
How severe is CVE-2026-27561?
High severity, with a CVSS score of 7.2, published 16 September 2026.
Which products and versions are affected?
Pepperl+Fuchs ICE2-8IOL-G65L-V1D firmware versions <1.7.4; Pepperl+Fuchs ICE2-8IOL-K45P-RJ45 firmware versions <1.7.4; Pepperl+Fuchs ICE2-8IOL-K45S-RJ45 firmware versions <1.7.4; Pepperl+Fuchs ICE2-8IOL1-G65L-V1D firmware versions <1.7.4; and 5 more.
Is there a fix for CVE-2026-27561?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-27561 attacked?
It is attacked over the network.
Am I affected by CVE-2026-27561?
Check whether you run Pepperl+Fuchs ICE2-8IOL-G65L-V1D, Pepperl+Fuchs ICE2-8IOL-K45P-RJ45, Pepperl+Fuchs ICE2-8IOL-K45S-RJ45 or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A command injection vulnerability exists in the /api/iodd/config endpoint of Pepperl+Fuchs ICE2-* and ICE3-* devices running firmware versions prior to 1.7.4. The endpoint fails to properly sanitize input parameters in GET requests, allowing an authenticated admin-level attacker to inject OS commands that execute with root privileges. The attack requires valid admin credentials but no additional user interaction. Successful exploitation allows full device compromise including integrity falsification and persistence across reboots.

Affected products

  • Pepperl+Fuchs ICE2-8IOL-G65L-V1D firmware versions <1.7.4
  • Pepperl+Fuchs ICE2-8IOL-K45P-RJ45 firmware versions <1.7.4
  • Pepperl+Fuchs ICE2-8IOL-K45S-RJ45 firmware versions <1.7.4
  • Pepperl+Fuchs ICE2-8IOL1-G65L-V1D firmware versions <1.7.4
  • Pepperl+Fuchs ICE3-8IOL-G65L-V1D firmware versions <1.7.4
  • Pepperl+Fuchs ICE3-8IOL-G65L-V1D-Y firmware versions <1.7.4
  • Pepperl+Fuchs ICE3-8IOL-K45P-RJ45 firmware versions <1.7.4
  • Pepperl+Fuchs ICE3-8IOL-K45S-RJ45 firmware versions <1.7.4
  • Pepperl+Fuchs ICE3-8IOL1-G65L-V1D firmware versions <1.7.4

Timeline

  • 2026-09-16: disclosed

References

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