A heap-based buffer overflow vulnerability in the Fireware OS authentication service allows an attacker who controls or intercepts traffic to the configured Active Directory server to create a denial of service condition and potentially execute arbitrary code by returning a specially crafted response.
Advisories
No advisories yet.
Fixes
Solution
Fireware OS 2026.4, Fireware OS 12.12.4, Fireware OS 12.5.22
Workaround
No workaround given by the vendor.
References
| Link | Providers |
|---|---|
| https://psirt.watchguard.com/CVE-2026-112709 |
|
History
Tue, 27 Oct 2026 16:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A heap-based buffer overflow vulnerability in the Fireware OS authentication service allows an attacker who controls or intercepts traffic to the configured Active Directory server to create a denial of service condition and potentially execute arbitrary code by returning a specially crafted response. | |
| Title | Fireware OS Heap Buffer Overflow in AD Authentication Service Allows Pre-Authentication Remote Code Execution | |
| First Time appeared |
Watchguard
Watchguard fireware Os |
|
| Weaknesses | CWE-122 CWE-131 CWE-787 |
|
| CPEs | cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Watchguard
Watchguard fireware Os |
|
| References |
| |
| Metrics |
cvssV4_0
|
Projects
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Status: PUBLISHED
Assigner: WatchGuard
Published:
Updated: 2026-10-27T15:52:28.465Z
Reserved: 2026-10-19T17:09:38.080Z
Link: CVE-2026-112709
No data.
Status : Received
Published: 2026-10-27T16:17:29.997
Modified: 2026-10-27T16:17:29.997
Link: CVE-2026-112709
No data.
OpenCVE Enrichment
No data.