CVE-2026-78498: CWE-918 in WatchGuard Dimension
Description
CVE-2026-78498 is a server-side request forgery (SSRF) vulnerability in WatchGuard Dimension's Email Server Test configuration. It allows an authenticated privileged attacker to enumerate network services on adjacent systems. The vulnerability has a CVSS 4.0 score of 5.1, indicating medium severity. No patch or official fix information is currently available. There are no known exploits in the wild at this time.
CVSS v4.0
Score 5.1medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-918) in WatchGuard Dimension allows an authenticated user with high privileges to perform SSRF attacks via the Email Server Test configuration feature. This enables the attacker to enumerate exposed network services on systems adjacent to the vulnerable server, potentially revealing internal network information. The CVSS 4.0 vector indicates network attack vector, low attack complexity, no user interaction, and no privileges required beyond high privileges already held.
Potential Impact
An attacker with authenticated privileged access can leverage this SSRF vulnerability to discover network services on adjacent systems. This could aid in further network reconnaissance and potentially facilitate subsequent attacks. However, the vulnerability does not directly allow code execution or data compromise beyond service enumeration.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or patch information is provided, monitor WatchGuard's advisories for updates. Limit privileged user access and restrict network exposure where possible as interim controls.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-27h4-xhmx-rq4q
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-78498"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 4.0
Threat ID: 6a91a7d5acd9273b490657b8
Added to database: 08/28/2026, 15:23:01 UTC
Last enriched: 09/10/2026, 00:22:35 UTC
Last updated: 10/12/2026, 18:48:23 UTC
Views: 30
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