Is CVE-2026-78618 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-78618 being exploited in the wild.

How severe is CVE-2026-78618?

Informational severity, with a CVSS score of 6.9, published 28 August 2026.

Is there a fix for CVE-2026-78618?

A patch was published on 2026-08-27: Dimension 2.3.1 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-78618 attacked?

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

Am I affected by CVE-2026-78618?

Check whether you run Watchguard Dimension 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-2026-78618: WatchGuard Dimension business logic flaw in backend operations

CVE-2026-78618 · Severity: info · CVSS 6.9 · Published 2026-08-28

WatchGuard Dimension is an administrative management and monitoring platform used by organizations to centrally control and oversee network security appliances. A business logic flaw allows authenticated administrators to trigger unintended backend operations by crafting a malicious request, potentially bypassing security controls or performing unauthorized actions within the system.

Technologies: Watchguard Dimension. Vendors: Watchguard.

Quick answers

Is CVE-2026-78618 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-78618 being exploited in the wild.
How severe is CVE-2026-78618?: Informational severity, with a CVSS score of 6.9, published 28 August 2026.
Which products and versions are affected?: Watchguard Dimension < 2.3.1.
Is there a fix for CVE-2026-78618?: A patch was published on 2026-08-27: Dimension 2.3.1 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-78618 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-78618?: Check whether you run Watchguard Dimension 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

This vulnerability is a business logic flaw (CWE-284 Improper Access Control, CWE-841 Improper Enforcement of Behavioral Workflow) in WatchGuard Dimension that permits an authenticated administrator to chain multiple backend object operations within a single logical flow by sending a specially crafted request. The vulnerability requires valid administrator authentication and network access to the Dimension interface. An attacker with admin credentials can exploit this to bypass normal workflow restrictions and perform unauthorized or cascading operations on backend objects. The vulnerability affects Dimension versions prior to 2.3.1; patched versions 2.3.1 and later are not affected.

Affected products

WatchGuard Dimension < 2.3.1

Timeline

2026-08-27: disclosed
2026-08-27: patched: Dimension 2.3.1

References

https://psirt.watchguard.com/CVE-2026-78618

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