# CVE-2026-78499: WatchGuard Dimension server-side request forgery via FTP server test

Source: https://junglewise.ai/threats/cve-2026-78499-watchguard-dimension-server-side-request-forgery-via-ftp-server  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-28. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-78499 · Severity: info · CVSS 5.1 · Published 2026-08-28

WatchGuard Dimension is a network management and monitoring platform used by organizations to oversee their infrastructure. An authenticated administrator with elevated privileges can exploit an SSRF vulnerability in the FTP Server Test configuration feature to discover and enumerate services running on adjacent network systems, potentially exposing internal infrastructure details to unauthorized discovery.

Technologies: [Watchguard Dimension](https://junglewise.ai/threats/technologies/dimension). Vendors: [Watchguard](https://junglewise.ai/threats/vendors/watchguard).

## Quick answers

**Is CVE-2026-78499 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-78499 being exploited in the wild.

**How severe is CVE-2026-78499?** Informational severity, with a CVSS score of 5.1, published 28 August 2026.

**Which products and versions are affected?** Watchguard Dimension >=2.0, <2.3.1.

**Is there a fix for CVE-2026-78499?** A patch was published on 2026-08-27: Fixed in Dimension 2.3.1 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-78499 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-78499?** 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

A server-side request forgery (CWE-918) vulnerability exists in WatchGuard Dimension's FTP Server Test feature within the configuration interface. The vulnerability allows an authenticated privileged attacker to craft requests that cause the Dimension server to make arbitrary connections to adjacent network systems, enabling enumeration of exposed network services. Attack requires authentication and elevated privileges. An attacker can discover internal services and network topology without direct access to those systems. The vulnerability is patched in Dimension version 2.3.1 and later.

## Affected products

- WatchGuard Dimension >=2.0, <2.3.1

## Timeline

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

## References

- [https://psirt.watchguard.com/CVE-2026-78499](https://psirt.watchguard.com/CVE-2026-78499)

## Related threats

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- [WatchGuard Dimension stored XSS in Trusted CA certificate configuration](https://junglewise.ai/threats/cve-2026-78616-watchguard-dimension-stored-xss-in-trusted-ca-certificate)
- [WatchGuard Dimension reflected XSS in report detail page](https://junglewise.ai/threats/cve-2026-78615-watchguard-dimension-reflected-xss-in-report-detail-page)
- [WatchGuard Dimension SQL injection in audit report feature](https://junglewise.ai/threats/cve-2026-78614-watchguard-dimension-sql-injection-in-audit-report-feature)