CVE-2026-19318

{"id": "CVE-2026-19318", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-19318", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-08-28T00:00:00+00:00"}}], "cvssMetricV40": [{"type": "Secondary", "source": "5d1c2695-1a31-4499-88ae-e847036fd7e3", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 9.3, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "5d1c2695-1a31-4499-88ae-e847036fd7e3", "affectedData": [{"vendor": "WatchGuard", "product": "Fireware OS", "versions": [{"status": "affected", "version": "2025.0", "lessThan": "2026.2.2", "versionType": "custom"}, {"status": "affected", "version": "12.0", "lessThan": "12.12.2", "versionType": "custom"}], "platforms": ["Default"], "defaultStatus": "unaffected"}, {"vendor": "WatchGuard", "product": "Fireware OS", "versions": [{"status": "affected", "version": "12.0", "lessThan": "12.5.20", "versionType": "custom"}, {"status": "affected", "version": "2026.3", "lessThan": "2026.3.1", "versionType": "custom"}], "platforms": ["T15/T35"], "defaultStatus": "unaffected"}]}], "published": "2026-08-28T02:16:21.070", "references": [{"url": "https://psirt.watchguard.com/CVE-2026-19318", "source": "5d1c2695-1a31-4499-88ae-e847036fd7e3"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "5d1c2695-1a31-4499-88ae-e847036fd7e3", "description": [{"lang": "en", "value": "CWE-121"}, {"lang": "en", "value": "CWE-129"}, {"lang": "en", "value": "CWE-191"}]}], "descriptions": [{"lang": "en", "value": "A stack-based buffer overflow vulnerability in the WatchGuard Fireware OS iked process allows a remote unauthenticated attacker to execute arbitrary code by sending specially crafted network traffic."}], "lastModified": "2026-09-03T21:17:21.280", "sourceIdentifier": "5d1c2695-1a31-4499-88ae-e847036fd7e3"}