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CVE-2026-18105: fireware from 12.0 (inclusive), before 12.5.21 (exclusive), from 12.12 (inclusive), before 12.12.3 (exclusive), from…
CVE-2026-18105. CVSS 3.1 base score 6.5 (MEDIUM, NVD). EPSS 0.00226 (percentile 0.12196), scored 2026-10-08.
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) · Low privileges required · No user interaction required
What an attacker can do
A low-privileged, authenticated user can cause a denial of service of the system's diagnostic tools by repeatedly starting and aborting a specially crafted diagnostic task through the web UI. Source advisory’s CVSS 4.0 assessment (base score 7.1/10) rates confidentiality and integrity impact as none; availability impact as high.
- CWE
- CWE-400, CWE-770
- CCR priority
- 26.1 /100 (P4)
- CVSS 3.1
- 6.5 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H · NVD
- EPSS
- 0.00226 · percentile 0.12196 · 2026-10-08
- KEV
- no
Provenance
- GitHub Advisory Database · Source record · observed 2026-10-09 03:17:07.463462+00:00 UTC
- NVD CVE API 2.0 · Source record · observed 2026-10-09 03:13:32.966430+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-18105.html