CVE-2026-78499Network attack vector

Adjacent service enumeration via unrestricted FTP test

Published Aug 27, 2026 · Updated Aug 27, 2026

Server-side request forgery in WatchGuard Dimension 2.0 through 2.3.0 allows remote authenticated users to scan adjacent network services. The FTP Server Test configuration accepts a privileged user-supplied host and makes a server-originated connection without restricting the target to an expected FTP server. Administrative privileges are required; the test result reveals whether services on systems reachable from the appliance accept connections.

CVSS severity5.1
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side request forgery in WatchGuard Dimension 2.0 through 2.3.0 allows remote authenticated users to scan adjacent network services. The FTP Server Test configuration accepts a privileged user-supplied host and makes a server-originated connection without restricting the target to an expected FTP server. Administrative privileges are required; the test result reveals whether services on systems reachable from the appliance accept connections.

The record

CVE
CVE-2026-78499
Published
Aug 27, 2026
Updated
Aug 27, 2026
Vendor
WatchGuard Technologies
Product
WatchGuard Dimension
Classifications
CWE-918, T1046
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Aug 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.0 <2.3.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

WatchGuard Technologies · WatchGuard Dimensionversion=2.0 <2.3.1

Published CVSS scores

5.1WatchGuard TechnologiesCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1046Network Service Discovery

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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