Vulnerability Details CVE-2026-18145
A stack-based buffer overflow vulnerability in the spamBlocker (spamd) service of WatchGuard Fireware OS allows an authenticated attacker with administrator privileges to crash the service or potentially execute arbitrary code by sending a specially crafted management request.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 25.6%
CVSS Severity
CVSS v3 Score 7.2
References
Products affected by CVE-2026-18145
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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:12.12
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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: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