Fireware OS Deserialization of Untrusted Data in samld Allows Remote Code Execution
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||
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| 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 | ||||||||||||||||||||
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| Watchguard | Fireware Os |
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| Watchguard | Fireware Os |
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| Watchguard | Fireware Os |
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Vendor Solution
Fireware OS 2026.2.3, Fireware OS 12.12.3, Fireware OS 12.11.10
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.369% probability within 30 days)
| Link | Providers |
|---|---|
| https://psirt.watchguard.com/CVE-2026-13046 |
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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 | A deserialization of untrusted data vulnerability in WatchGuard Fireware OS's SAML single sign-on session handling (samld) allows an attacker who has already obtained the ability to write files on the appliance to execute arbitrary code in the context of the samld service by causing samld to load a maliciously crafted session file. | |
| Title | Fireware OS Deserialization of Untrusted Data in samld Allows Remote Code Execution | |
| First Time appeared |
Watchguard
Watchguard fireware Os |
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| Weaknesses | CWE-502 | |
| 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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