# CVE-2026-27552: Pepperl+Fuchs ICE2/ICE3 improper authorization in IODD upload

Source: https://junglewise.ai/threats/cve-2026-27552-pepperl-fuchs-ice2-ice3-improper-authorization-in-iodd-upload  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-16. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-27552 · Severity: high · CVSS 8.1 · Published 2026-09-16

Pepperl+Fuchs ICE2 and ICE3 industrial I/O link devices are vulnerable to improper authorization controls on file upload endpoints. An attacker with basic user credentials can upload malicious firmware files that execute with root privileges, potentially hijacking device operations or causing system failures in networked industrial control systems.

Technologies: [Pepperl+Fuchs ICE2-8IOL-G65L-V1D](https://junglewise.ai/threats/technologies/ice2-8iol-g65l-v1d), [Pepperl+Fuchs ICE2-8IOL-K45P-RJ45](https://junglewise.ai/threats/technologies/ice2-8iol-k45p-rj45), [Pepperl+Fuchs ICE2-8IOL-K45S-RJ45](https://junglewise.ai/threats/technologies/ice2-8iol-k45s-rj45), [Pepperl+Fuchs ICE2-8IOL1-G65L-V1D](https://junglewise.ai/threats/technologies/ice2-8iol1-g65l-v1d), [Pepperl+Fuchs ICE3-8IOL-G65L-V1D](https://junglewise.ai/threats/technologies/ice3-8iol-g65l-v1d), [Pepperl+Fuchs ICE3-8IOL-G65L-V1D-Y](https://junglewise.ai/threats/technologies/ice3-8iol-g65l-v1d-y), [Pepperl+Fuchs ICE3-8IOL-K45P-RJ45](https://junglewise.ai/threats/technologies/ice3-8iol-k45p-rj45), [Pepperl+Fuchs ICE3-8IOL-K45S-RJ45](https://junglewise.ai/threats/technologies/ice3-8iol-k45s-rj45), [Pepperl+Fuchs ICE3-8IOL1-G65L-V1D](https://junglewise.ai/threats/technologies/ice3-8iol1-g65l-v1d). Vendors: [Pepperl+Fuchs](https://junglewise.ai/threats/vendors/pepperl-fuchs).

## Quick answers

**Is CVE-2026-27552 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-27552 being exploited in the wild.

**How severe is CVE-2026-27552?** High severity, with a CVSS score of 8.1, published 16 September 2026.

**Which products and versions are affected?** Pepperl+Fuchs ICE2-8IOL-G65L-V1D <1.7.4; Pepperl+Fuchs ICE2-8IOL-K45P-RJ45 <1.7.4; Pepperl+Fuchs ICE2-8IOL-K45S-RJ45 <1.7.4; Pepperl+Fuchs ICE2-8IOL1-G65L-V1D <1.7.4; and 5 more.

**Is there a fix for CVE-2026-27552?** 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-2026-27552 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-27552?** 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

CVE-2026-27552 is a command injection vulnerability in the /index.php/attached_devices_tab/do_upload endpoint that affects ICE2 and ICE3 firmware versions before 1.7.4. A low-privileged remote attacker with operator credentials can upload a crafted IODD file that contains shell commands executed with root privileges on the device. The vulnerability allows arbitrary code execution even after device reboot. The attack is network-accessible and requires valid operator-level credentials.

## Affected products

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

## Timeline

- 2026-09-16: disclosed

## References

- [https://www.certvde.com/en/advisories/VDE-2026-014/](https://www.certvde.com/en/advisories/VDE-2026-014/)
- [https://www.certvde.com/en/advisories/VDE-2026-027/](https://www.certvde.com/en/advisories/VDE-2026-027/)

## Related threats

- [Pepperl+Fuchs ICE2/ICE3 OS command injection in IODD file upload](https://junglewise.ai/threats/cve-2026-27565-pepperl-fuchs-ice2-ice3-os-command-injection-in-iodd-file-upload)
- [Pepperl+Fuchs ICE2/ICE3 command injection in datastorage endpoint](https://junglewise.ai/threats/cve-2026-27564-pepperl-fuchs-ice2-ice3-command-injection-in-datastorage-endpoint)
- [Pepperl+Fuchs ICE2 and ICE3 command injection in datastorage endpoint](https://junglewise.ai/threats/cve-2026-27563-pepperl-fuchs-ice2-and-ice3-command-injection-in-datastorage)
- [Pepperl+Fuchs ICE2/ICE3 command injection in /api/iodd/config](https://junglewise.ai/threats/cve-2026-27562-pepperl-fuchs-ice2-ice3-command-injection-in-api-iodd-config)
- [Pepperl+Fuchs ICE2/ICE3 command injection in /api/iodd/config](https://junglewise.ai/threats/cve-2026-27561-pepperl-fuchs-ice2-ice3-command-injection-in-api-iodd-config)