An Out-of-bounds Write vulnerability in WatchGuard Fireware OS may allow an unauthenticated attacker on the same local network segment to execute arbitrary code. This vulnerability affects Firewa…

Info

CVECVE-2026-8247

First seen2026-08-10 22:15 UTC

Disclosed2026-07-03 00:16 UTC

Last updated2026-08-10 22:15 UTC

Channel statusauto

Summary

An Out-of-bounds Write vulnerability in WatchGuard Fireware OS may allow an unauthenticated attacker on the same local network segment to execute arbitrary code. This vulnerability affects Fireware OS 11.0 up to and including 11.12.4_Update1, 12.0 up to and including 12.12 and 2025.1 up to and including 2026.2.

In-depth triage

No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).

Sources

NVD DATABASE

Original Links

https://psirt.watchguard.com/CVE-2026-8247
https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00026

Timeline

2026-08-10 nvd_ingest NVD