Fireware OS Pre-Authentication Integer Underflow in iked Allows Remote Denial of Service
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WatchGuard | Fireware OS | unaffected |
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| WatchGuard | Fireware OS | unaffected |
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Configuration 1 [-]
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No data.
| Vendor | Product | Versions | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Watchguard | Fireware Os |
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| Watchguard | Fireware Os |
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Vendor Solution
Fireware OS 2026.3.2, Fireware OS 2026.2.3, Fireware OS 12.12.3, Fireware OS 12.5.21
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.346% probability within 30 days)
| Link | Providers |
|---|---|
| https://psirt.watchguard.com/CVE-2026-86133 |
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| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Watchguard fireware
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| CPEs | cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Watchguard fireware
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| Metrics |
cvssV3_1
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| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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| Type | Values Removed | Values Added |
|---|---|---|
| Description | An integer underflow vulnerability in the WatchGuard Fireware OS IKE daemon (iked) allows a remote attacker who has completed the initial IKEv2 handshake to crash the iked process by sending a specially crafted encrypted IKEv2 message, resulting in a denial of service. | |
| Title | Fireware OS Pre-Authentication Integer Underflow in iked Allows Remote Denial of Service | |
| First Time appeared |
Watchguard
Watchguard fireware Os |
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| Weaknesses | CWE-1284 CWE-191 |
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| CPEs | cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Watchguard
Watchguard fireware Os |
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| References |
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| Metrics |
cvssV4_0
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