{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-86136", "assignerOrgId": "5d1c2695-1a31-4499-88ae-e847036fd7e3", "state": "PUBLISHED", "assignerShortName": "WatchGuard", "dateReserved": "2026-09-05T03:22:58.693Z", "datePublished": "2026-09-29T23:05:47.485Z", "dateUpdated": "2026-09-29T23:05:47.485Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "5d1c2695-1a31-4499-88ae-e847036fd7e3", "shortName": "WatchGuard", "dateUpdated": "2026-09-29T23:05:47.485Z"}, "title": "Fireware OS Missing Authorization in wgagent Management API Allows Denial of Service - Variant A", "descriptions": [{"lang": "en", "value": "A missing authorization vulnerability in the wgagent management daemon's session initialization function allows an authenticated, low-privileged user (including a read-only or guest administrator account) to crash the wgagent process and read arbitrary files accessible to the daemon by submitting a specially crafted management API request."}], "affected": [{"vendor": "WatchGuard", "product": "Fireware OS", "versions": [{"status": "affected", "version": "2026.0", "versionType": "custom", "lessThan": "2026.3.2"}, {"status": "affected", "version": "2025.0", "versionType": "custom", "lessThan": "2026.2.3"}, {"status": "affected", "version": "12.0", "versionType": "custom", "lessThan": "12.12.3"}], "defaultStatus": "unaffected", "platforms": ["Default"]}, {"vendor": "WatchGuard", "product": "Fireware OS", "versions": [{"status": "affected", "version": "12.0", "versionType": "custom", "lessThan": "12.5.21"}], "defaultStatus": "unaffected", "platforms": ["T15/T35"]}], "references": [{"url": "https://psirt.watchguard.com/CVE-2026-86136", "tags": ["vendor-advisory"]}], "cpeApplicability": [{"operator": "OR", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:*", "versionStartIncluding": "12.0", "versionEndExcluding": "12.5.21"}, {"vulnerable": true, "criteria": "cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:*", "versionStartIncluding": "2026.0", "versionEndExcluding": "2026.3.2"}, {"vulnerable": true, "criteria": "cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:*", "versionStartIncluding": "2025.0", "versionEndExcluding": "2026.2.3"}, {"vulnerable": true, "criteria": "cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:*", "versionStartIncluding": "12.0", "versionEndExcluding": "12.12.3"}]}]}], "metrics": [{"cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N", "baseScore": 7.1, "baseSeverity": "HIGH"}}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-22", "type": "CWE", "cweId": "CWE-22"}, {"lang": "en", "description": "CWE-476", "type": "CWE", "cweId": "CWE-476"}, {"lang": "en", "description": "CWE-862", "type": "CWE", "cweId": "CWE-862"}]}], "credits": [{"lang": "en", "value": "WatchGuard AI Security Research", "type": "finder"}], "configurations": [{"lang": "en", "value": "To exploit this vulnerability, an attacker requires network access to a management interface on the Firebox.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>To exploit this vulnerability, an attacker requires network access to a management interface on the Firebox.</p>"}]}], "solutions": [{"lang": "en", "value": "Fireware OS 2026.3.2, Fireware OS 2026.2.3, Fireware OS 12.12.3, Fireware OS 12.5.21", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Fireware OS 2026.3.2, Fireware OS 2026.2.3, Fireware OS 12.12.3, Fireware OS 12.5.21"}]}], "exploits": [{"lang": "en", "value": "WatchGuard is not aware of any exploitation of this vulnerability in the wild.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "WatchGuard is not aware of any exploitation of this vulnerability in the wild."}]}]}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "platforms": ["Default"], "product": "Fireware OS", "vendor": "WatchGuard", "versions": [{"lessThan": "2026.3.2", "status": "affected", "version": "2026.0", "versionType": "custom"}, {"lessThan": "2026.2.3", "status": "affected", "version": "2025.0", "versionType": "custom"}, {"lessThan": "12.12.3", "status": "affected", "version": "12.0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "platforms": ["T15/T35"], "product": "Fireware OS", "vendor": "WatchGuard", "versions": [{"lessThan": "12.5.21", "status": "affected", "version": "12.0", "versionType": "custom"}]}], "source": "5d1c2695-1a31-4499-88ae-e847036fd7e3"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A missing authorization vulnerability in the wgagent management daemon's session initialization function allows an authenticated, low-privileged user (including a read-only or guest administrator account) to crash the wgagent process and read arbitrary files accessible to the daemon by submitting a specially crafted management API request."}], "id": "CVE-2026-86136", "lastModified": "2026-09-30T00:16:37.213", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/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", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "5d1c2695-1a31-4499-88ae-e847036fd7e3", "type": "Secondary"}]}, "published": "2026-09-30T00:16:37.213", "references": [{"source": "5d1c2695-1a31-4499-88ae-e847036fd7e3", "url": "https://psirt.watchguard.com/CVE-2026-86136"}], "sourceIdentifier": "5d1c2695-1a31-4499-88ae-e847036fd7e3", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}, {"lang": "en", "value": "CWE-476"}, {"lang": "en", "value": "CWE-862"}], "source": "5d1c2695-1a31-4499-88ae-e847036fd7e3", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": ["default"], "status": "affected", "versions": {"scheme": "generic", "value": "[2026.0,2026.3.2)"}}, {"platform": ["default"], "status": "affected", "versions": {"scheme": "generic", "value": "[2025.0,2026.2.3)"}}, {"platform": ["default"], "status": "affected", "versions": {"scheme": "generic", "value": "[12.0,12.12.3)"}}, {"platform": ["t15/t35"], "status": "affected", "versions": {"scheme": "generic", "value": "[12.0,12.5.21)"}}], "enrichment": {"confidence": 90.0, "confidence_source": "inferred", "scores": [{"score": 90.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Fireware OS", "source": "cna", "vendor": "WatchGuard"}, "product": "fireware_os", "vendor": "watchguard"}, {"configurations": [{"platform": ["t15/t35"], "status": "affected", "versions": {"scheme": "generic", "value": "[12.0,12.5.21)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Fireware OS", "source": "cna", "vendor": "WatchGuard"}, "product": "fireware_os", "vendor": "watchguard"}], "created": "2026-09-30T01:15:04.475799+00:00", "updated": "2026-09-30T01:15:04.475827+00:00", "vendors": ["watchguard", "watchguard$PRODUCT$fireware_os"]}