Vulnerability Details CVE-2026-13046
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 23.5%
CVSS Severity
CVSS v3 Score 7.2
References
Products affected by CVE-2026-13046
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cpe:2.3:o:watchguard:fireware:12.0.0
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cpe:2.3:o:watchguard:fireware:12.0.1
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cpe:2.3:o:watchguard:fireware:12.0.2
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cpe:2.3:o:watchguard:fireware:12.1
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cpe:2.3:o:watchguard:fireware:12.1.1
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cpe:2.3:o:watchguard:fireware:12.1.3
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cpe:2.3:o:watchguard:fireware:12.1.4
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cpe:2.3:o:watchguard:fireware:12.10
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cpe:2.3:o:watchguard:fireware:12.10.1
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cpe:2.3:o:watchguard:fireware:12.10.2
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cpe:2.3:o:watchguard:fireware:12.10.3
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cpe:2.3:o:watchguard:fireware:12.10.4
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cpe:2.3:o:watchguard:fireware:12.11
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cpe:2.3:o:watchguard:fireware:12.11.1
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cpe:2.3:o:watchguard:fireware:12.11.2
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cpe:2.3:o:watchguard:fireware:12.11.3
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cpe:2.3:o:watchguard:fireware:12.11.4
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cpe:2.3:o:watchguard:fireware:12.11.5
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cpe:2.3:o:watchguard:fireware:12.11.6
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cpe:2.3:o:watchguard:fireware:12.11.7
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cpe:2.3:o:watchguard:fireware:12.11.8
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cpe:2.3:o:watchguard:fireware:12.12
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cpe:2.3:o:watchguard:fireware:12.12.1
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cpe:2.3:o:watchguard:fireware:12.2.0
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cpe:2.3:o:watchguard:fireware:12.2.1
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cpe:2.3:o:watchguard:fireware:12.3
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cpe:2.3:o:watchguard:fireware:12.3.1
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cpe:2.3:o:watchguard:fireware:12.4
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cpe:2.3:o:watchguard:fireware:12.4.1
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cpe:2.3:o:watchguard:fireware:12.5
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cpe:2.3:o:watchguard:fireware:12.5.1
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cpe:2.3:o:watchguard:fireware:12.5.10
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cpe:2.3:o:watchguard:fireware:12.5.11
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cpe:2.3:o:watchguard:fireware:12.5.12
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cpe:2.3:o:watchguard:fireware:12.5.13
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cpe:2.3:o:watchguard:fireware:12.5.14
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cpe:2.3:o:watchguard:fireware:12.5.15
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cpe:2.3:o:watchguard:fireware:12.5.17
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cpe:2.3:o:watchguard:fireware:12.5.18
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cpe:2.3:o:watchguard:fireware:12.5.19
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cpe:2.3:o:watchguard:fireware:12.5.2
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cpe:2.3:o:watchguard:fireware:12.5.3
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cpe:2.3:o:watchguard:fireware:12.5.4
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cpe:2.3:o:watchguard:fireware:12.5.5
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cpe:2.3:o:watchguard:fireware:12.5.6
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cpe:2.3:o:watchguard:fireware:12.5.7
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cpe:2.3:o:watchguard:fireware:12.5.8
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cpe:2.3:o:watchguard:fireware:12.5.9
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cpe:2.3:o:watchguard:fireware:12.6.1
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cpe:2.3:o:watchguard:fireware:12.6.3
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cpe:2.3:o:watchguard:fireware:12.6.4
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cpe:2.3:o:watchguard:fireware:12.7.0
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cpe:2.3:o:watchguard:fireware:12.7.1
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cpe:2.3:o:watchguard:fireware:12.7.2
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cpe:2.3:o:watchguard:fireware:12.8.0
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cpe:2.3:o:watchguard:fireware:12.8.1
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cpe:2.3:o:watchguard:fireware:12.8.2
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cpe:2.3:o:watchguard:fireware:12.8.3
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cpe:2.3:o:watchguard:fireware:12.9
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cpe:2.3:o:watchguard:fireware:12.9.2
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cpe:2.3:o:watchguard:fireware:12.9.3
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cpe:2.3:o:watchguard:fireware:12.9.4
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cpe:2.3:o:watchguard:fireware:2025.1
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cpe:2.3:o:watchguard:fireware:2025.1.1
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cpe:2.3:o:watchguard:fireware:2025.1.2
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cpe:2.3:o:watchguard:fireware:2025.1.3
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cpe:2.3:o:watchguard:fireware:2025.1.4
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cpe:2.3:o:watchguard:fireware:2026.1
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cpe:2.3:o:watchguard:fireware:2026.1.1
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cpe:2.3:o:watchguard:fireware:2026.1.2
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cpe:2.3:o:watchguard:fireware:2026.2
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cpe:2.3:o:watchguard:fireware:2026.2.1
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cpe:2.3:o:watchguard:fireware:2026.3