Is CVE-2025-41278 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2025-41278 being exploited in the wild.

How severe is CVE-2025-41278?

Informational severity, with a CVSS score of 7.5, published 29 May 2026.

Which products and versions are affected?

Waterfall Security Solutions WF-500 RX Host 7.10.0.0 R2601141040.

Is there a fix for CVE-2025-41278?

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-2025-41278 attacked?

It is attacked with local access, in a network appliance.

Am I affected by CVE-2025-41278?

Check whether you run Waterfall Security Solutions WF-500 RX Host 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-2025-41278: Waterfall WF-500 RX Host out-of-bounds read code execution

CVE-2025-41278 · Severity: info · CVSS 7.5 · Published 2026-05-29

A security vulnerability has been identified in the Waterfall WF-500 RX Host, a component of a unidirectional security gateway used to protect industrial control systems. An attacker who has already gained access to the transmitting (TX) side of the gateway can exploit this flaw to execute unauthorized code on the receiving (RX) side. This could allow an attacker to bypass the physical isolation provided by the hardware, potentially leading to a full compromise of the protected network.

Technologies: Waterfall Security Solutions WF-500 RX Host. Vendors: Waterfall Security Solutions.

Quick answers

Is CVE-2025-41278 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2025-41278 being exploited in the wild.
How severe is CVE-2025-41278?: Informational severity, with a CVSS score of 7.5, published 29 May 2026.
Which products and versions are affected?: Waterfall Security Solutions WF-500 RX Host 7.10.0.0 R2601141040.
Is there a fix for CVE-2025-41278?: 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-2025-41278 attacked?: It is attacked with local access, in a network appliance.
Am I affected by CVE-2025-41278?: Check whether you run Waterfall Security Solutions WF-500 RX Host 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

An out-of-bounds read vulnerability (CWE-125) exists in the Waterfall WF-500 RX Host version 7.10.0.0 R2601141040. The flaw is triggered when processing data sent from the TX (Transmitting) Host. While the attack vector is classified as local (AV:L) because it requires a foothold on the adjacent TX component of the gateway, successful exploitation allows for remote code execution on the RX Host. This effectively compromises the integrity of the unidirectional security gap. The vulnerability was identified by Nozomi Networks Labs.

Affected products

Waterfall Security Solutions WF-500 RX Host 7.10.0.0 R2601141040

Timeline

2026-05-29: disclosed: Initial disclosure by Nozomi Networks Labs and NVD publication.

References

https://www.nozominetworks.com/labs/vulnerability-advisories-cve-2025-41278

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