Is CVE-2026-27546 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-27546 being exploited in the wild.

How severe is CVE-2026-27546?

Critical severity, with a CVSS score of 9.8, 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-2026-27546?

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-2026-27546 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-27546?

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.

CVE-2026-27546: Pepperl+Fuchs ICE2/ICE3 firmware authentication bypass in _account_log

Q: Is there a fix for CVE-2026-27546?

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.

Q: How is CVE-2026-27546 attacked?

It is attacked over the network, in a network appliance.

Q: Am I affected by CVE-2026-27546?

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.

CVE-2026-27546 · Severity: critical · CVSS 9.8 · Published 2026-09-16

Pepperl+Fuchs ICE2 and ICE3 industrial I/O Link devices contain a flaw in their authentication mechanism that allows unauthenticated attackers to log in with administrator privileges without valid credentials. An attacker can gain full control of these devices used in factory automation and industrial control systems, potentially disrupting production lines and accessing sensitive operational data.

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-2026-27546 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-27546 being exploited in the wild.
How severe is CVE-2026-27546?: Critical severity, with a CVSS score of 9.8, 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-2026-27546?: 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-2026-27546 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-27546?: 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

The vulnerability is an authentication bypass (CWE-288) in the _account_log function that allows unauthenticated remote attackers to gain administrative access. No authentication credentials or preconditions are required; the flaw can be exploited directly over the network. An attacker can achieve complete compromise of the device with administrator privileges, enabling device control, configuration changes, and potential lateral movement into industrial control networks. Patches are available in firmware version 1.7.4 and later.

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
2026-09-16: advisory: VDE-2026-014 advisory published

References

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