Description
A heap-based buffer overflow vulnerability in Fireware OS's iked process allows an authenticated administrator to crash the IKE daemon (iked), resulting in a denial of service, by saving a specially crafted configuration.
Analysis and contextual insights are available on OpenCVE Cloud.
Remediation
Vendor Solution
Fireware OS 2026.2.1, Fireware OS 12.12.1, Fireware OS 12.11.9, Fireware OS 12.5.18
Tracking
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Advisories
No advisories yet.
References
| Link | Providers |
|---|---|
| https://psirt.watchguard.com/CVE-2026-81851 |
|
History
Thu, 27 Aug 2026 18:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A heap-based buffer overflow vulnerability in Fireware OS's iked process allows an authenticated administrator to crash the IKE daemon (iked), resulting in a denial of service, by saving a specially crafted configuration. | |
| Title | Fireware OS Heap-Based Buffer Overflow in iked Allows Denial of Service | |
| First Time appeared |
Watchguard
Watchguard fireware Os |
|
| Weaknesses | CWE-122 CWE-1284 |
|
| CPEs | cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Watchguard
Watchguard fireware Os |
|
| References |
| |
| Metrics |
cvssV4_0
|
Status: PUBLISHED
Assigner: WatchGuard
Published:
Updated: 2026-08-27T22:58:26.855Z
Reserved: 2026-08-27T16:29:07.182Z
Link: CVE-2026-81851
No data.
Status : Received
Published: 2026-08-28T00:18:22.687
Modified: 2026-08-28T00:18:22.687
Link: CVE-2026-81851
No data.
OpenCVE Enrichment
No data.