# CVE-2026-78174

## Summary

- **CVE ID:** CVE-2026-78174
- **Severity:** CRITICAL
- **CVSS Score:** 9.3 (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:N/SA:N)
- **CWE:** CWE-200, CWE-269, CWE-532
- **Published:** Aug 27, 2026
- **Last Modified:** Aug 28, 2026

## Description

WatchGuard Dimension records unredacted session identifiers for logged-in users in its web UI diagnostic log. A low-privileged Dimension Administrator can retrieve this log and extract a Super Administrator's session token while that administrator is logged in, enabling account takeover.

## Affected Products

- WatchGuard — Dimension (2.0)

## References

- [CNA](https://psirt.watchguard.com/CVE-2026-78174)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.35%
- **EPSS Percentile:** 27.7

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._