WatchGuard security advisory (AV26-865)
Canada's Cyber Centre warns WatchGuard Dimension and Fireware OS vulnerabilities affect multiple versions and urges administrators to apply available updates.
The Canadian Centre for Cyber Security issued advisory AV26-865 (August 31, 2026) noting that WatchGuard products are affected by vulnerabilities as of August 27, 2026. Affected products include Dimension prior to 2.3.1 and Fireware OS prior to 12.12.2, 12.5.20, and 2026.2.2. Users and administrators are encouraged to review the advisory link and apply updates as they become available.
- Affected: WatchGuard Dimension prior to 2.3.1
- Fireware OS branches patched in 12.12.2, 12.5.20, 2026.2.2
- Advisory AV26-865 dated August 31, 2026
- Products
- Fireware OSDimension
- Organizations
- WatchGuardCanadian Centre for Cyber Security
- Countries
- Canada
From the original article
Serial Number: AV26-865 Date: August 31, 2026 As of August 27, 2026, WatchGuard is affected by vulnerabilities in the following products: Dimension Prior to 2. 3. 1 Fireware OS Prior to 12.
cyber.gc.ca
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