# CVE-2026-78617

## Summary

- **CVE ID:** CVE-2026-78617
- **Severity:** MEDIUM
- **CVSS Score:** 6.3 (CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N)
- **CWE:** CWE-203, CWE-307
- **Published:** Aug 27, 2026
- **Last Modified:** Aug 28, 2026

## Description

WatchGuard Dimension's web login endpoint does not enforce effective rate-limiting or account lockout by default allowing a remote attacker to perform automated password guessing against user accounts. If the account lockout setting is enabled, brute-force attempts are blocked after a defined number of failed attempts, but this setting is not enabled by default.

## Affected Products

- WatchGuard — Dimension (2.0)

## References

- [CNA](https://psirt.watchguard.com/CVE-2026-78617)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.32%
- **EPSS Percentile:** 25.1

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