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CVE-2026-86133: fireware from 12.0 (inclusive), before 12.5.21 (exclusive), from 12.12 (inclusive), before 12.12.3 (exclusive), from…
CVE-2026-86133. CVSS 3.1 base score 7.5 (HIGH, NVD). EPSS 0.0034 (percentile 0.25199), scored 2026-10-05.
Affected technology
fireware · from 12.0 (inclusive), before 12.5.21 (exclusive)
watchguard
fireware · from 12.12 (inclusive), before 12.12.3 (exclusive)
watchguard
fireware · from 2025.0 (inclusive), before 2026.2.3 (exclusive)
watchguard
fireware · from 2026.3 (inclusive), before 2026.3.2 (exclusive)
watchguard
Fireware OS · 2026.3 to before 2026.3.2, 2025.0 to before 2026.2.3, 12.0 to before 12.12.3
WatchGuard
Fireware OS · 12.0 to before 12.5.21
WatchGuard
Component: Not specified by the source
Attack conditions (Source advisory, CVSS 4.0): Network (remote) · No privileges required · No user interaction required
What an attacker can do
The source reports that an attacker could disrupt service. Source advisory’s CVSS 4.0 assessment (base score 8.2/10) rates confidentiality and integrity impact as none; availability impact as high.
- CWE
- CWE-191, CWE-1284
- CCR priority
- 30.1 /100 (P4)
- CVSS 3.1
- 7.5 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · NVD
- EPSS
- 0.0034 · percentile 0.25199 · 2026-10-05
- KEV
- no
Provenance
- NVD CVE API 2.0 · Source record · observed 2026-10-07 02:34:12.333111+00:00 UTC
- GitHub Advisory Database · Source record · observed 2026-10-07 02:36:03.777225+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-86133.html