{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-13371", "assignerOrgId": "5d1c2695-1a31-4499-88ae-e847036fd7e3", "state": "PUBLISHED", "assignerShortName": "WatchGuard", "dateReserved": "2026-06-25T19:43:53.207Z", "datePublished": "2026-07-02T23:04:42.674Z", "dateUpdated": "2026-08-10T17:08:31.138Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "5d1c2695-1a31-4499-88ae-e847036fd7e3", "shortName": "WatchGuard", "dateUpdated": "2026-08-10T17:08:31.138Z"}, "title": "WatchGuard Firebox Management Web UI Denial of Service via Unsafe Deserialization", "descriptions": [{"lang": "en", "value": "An authenticated administrator can trigger a denial-of-service condition in the Fireware Management Web UI by sending malformed or crafted data to the put_data endpoint, which performs unsafe deserialization of the attacker-supplied input."}], "affected": [{"vendor": "WatchGuard", "product": "Fireware OS", "versions": [{"status": "affected", "version": "2025.1", "versionType": "custom", "lessThan": "2026.2.1"}, {"status": "affected", "version": "12.0", "versionType": "custom", "lessThan": "12.12.1"}], "defaultStatus": "unaffected", "platforms": ["Default"]}, {"vendor": "WatchGuard", "product": "Fireware OS", "versions": [{"status": "affected", "version": "12.0", "versionType": "custom", "lessThan": "12.5.19"}], "defaultStatus": "unaffected", "platforms": ["T15/T35"]}], "references": [{"url": "https://psirt.watchguard.com/CVE-2026-13371", "tags": ["vendor-advisory"]}, {"url": "https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00014", "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": "12.5.19"}, {"vulnerable": true, "criteria": "cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:*", "versionStartIncluding": "2025.1", "versionEndExcluding": "2026.2.1"}, {"vulnerable": true, "criteria": "cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:*", "versionStartIncluding": "12.0", "versionEndExcluding": "12.12.1"}]}]}], "metrics": [{"cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "baseScore": 6.9, "baseSeverity": "MEDIUM"}}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-502", "type": "CWE", "cweId": "CWE-502"}]}], "credits": [{"lang": "en", "value": "Cody Sixteen", "type": "finder"}], "solutions": [{"lang": "en", "value": "Fireware OS 2026.2.1, Fireware OS 12.12.1, Fireware OS 12.5.19"}], "exploits": [{"lang": "en", "value": "WatchGuard is not aware of any exploitation of this vulnerability in the wild."}], "datePublic": "2026-07-02T23:04:42.674Z"}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-07-06T18:04:59.649744Z", "id": "CVE-2026-13371", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-07T17:01:52.545Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-13371", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-06T18:04:59.649744Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-06T18:05:00.842Z"}}], "cna": {"title": "WatchGuard Firebox Management Web UI Denial of Service via Unsafe Deserialization", "credits": [{"lang": "en", "type": "finder", "value": "Cody Sixteen"}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 6.9, "baseSeverity": "MEDIUM", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}}], "affected": [{"vendor": "WatchGuard", "product": "Fireware OS", "versions": [{"status": "affected", "version": "2025.1", "lessThan": "2026.2.1", "versionType": "custom"}, {"status": "affected", "version": "12.0", "lessThan": "12.12.1", "versionType": "custom"}], "platforms": ["Default"], "defaultStatus": "unaffected"}, {"vendor": "WatchGuard", "product": "Fireware OS", "versions": [{"status": "affected", "version": "12.0", "lessThan": "12.5.19", "versionType": "custom"}], "platforms": ["T15/T35"], "defaultStatus": "unaffected"}], "exploits": [{"lang": "en", "value": "WatchGuard is not aware of any exploitation of this vulnerability in the wild."}], "solutions": [{"lang": "en", "value": "Fireware OS 2026.2.1, Fireware OS 12.12.1, Fireware OS 12.5.19"}], "datePublic": "2026-07-02T23:04:42.674Z", "references": [{"url": "https://psirt.watchguard.com/CVE-2026-13371", "tags": ["vendor-advisory"]}, {"url": "https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00014", "tags": ["vendor-advisory"]}], "descriptions": [{"lang": "en", "value": "An authenticated administrator can trigger a denial-of-service condition in the Fireware Management Web UI by sending malformed or crafted data to the put_data endpoint, which performs unsafe deserialization of the attacker-supplied input."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-502", "description": "CWE-502"}]}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "12.5.19", "versionStartIncluding": "12.0"}, {"criteria": "cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "2026.2.1", "versionStartIncluding": "2025.1"}, {"criteria": "cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "12.12.1", "versionStartIncluding": "12.0"}], "operator": "OR"}], "operator": "OR"}], "providerMetadata": {"orgId": "5d1c2695-1a31-4499-88ae-e847036fd7e3", "shortName": "WatchGuard", "dateUpdated": "2026-08-10T17:08:31.138Z"}}}, "cveMetadata": {"cveId": "CVE-2026-13371", "state": "PUBLISHED", "dateUpdated": "2026-08-10T17:08:31.138Z", "dateReserved": "2026-06-25T19:43:53.207Z", "assignerOrgId": "5d1c2695-1a31-4499-88ae-e847036fd7e3", "datePublished": "2026-07-02T23:04:42.674Z", "assignerShortName": "WatchGuard"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "platforms": ["Default"], "product": "Fireware OS", "vendor": "WatchGuard", "versions": [{"lessThan": "2026.2.1", "status": "affected", "version": "2025.1", "versionType": "custom"}, {"lessThan": "12.12.1", "status": "affected", "version": "12.0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "platforms": ["T15/T35"], "product": "Fireware OS", "vendor": "WatchGuard", "versions": [{"lessThan": "12.5.19", "status": "affected", "version": "12.0", "versionType": "custom"}]}], "source": "5d1c2695-1a31-4499-88ae-e847036fd7e3"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:*", "matchCriteriaId": "51B8E788-8FAF-4681-9750-488B2691F473", "versionEndExcluding": "2026.2.1", "versionStartIncluding": "2025.1", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:watchguard:firebox_m295:-:*:*:*:*:*:*:*", "matchCriteriaId": "615FF2CF-69DA-4890-9236-52D8D6FA0E71", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_m395:-:*:*:*:*:*:*:*", "matchCriteriaId": "A3439409-2FD6-447B-91CF-17D1C09E2A79", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_m495:-:*:*:*:*:*:*:*", "matchCriteriaId": "C0C0412F-AB02-4D13-B159-D0FCD2ECA3ED", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_m595:-:*:*:*:*:*:*:*", "matchCriteriaId": "575CC5EE-0278-489B-AA95-5EC5058D6FB9", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_m695:-:*:*:*:*:*:*:*", "matchCriteriaId": "5597F672-3C72-4BCF-AD3F-F16B6913EC2F", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_t115-w:-:*:*:*:*:*:*:*", "matchCriteriaId": "E8AAE66B-DD19-4C90-8DFC-F77BA1541642", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_t125:-:*:*:*:*:*:*:*", "matchCriteriaId": "7FC18430-C6B4-4395-BFF1-83BB005875BA", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_t125-w:-:*:*:*:*:*:*:*", "matchCriteriaId": "1A7C1C91-8B6E-4FB0-841E-7F88B06B1435", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_t145:-:*:*:*:*:*:*:*", "matchCriteriaId": "8FE309D6-BD5E-4D18-91C3-A492C3576115", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_t145-w:-:*:*:*:*:*:*:*", "matchCriteriaId": "75959D39-0960-4836-96C7-DB8048DDE4B8", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_t185:-:*:*:*:*:*:*:*", "matchCriteriaId": "D0087049-27C6-4B18-A645-72A8F63D7C6D", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:*", "matchCriteriaId": "1516BDB6-FE26-4A40-A3C9-87ED9687F396", "versionEndExcluding": "12.5.19", "versionStartIncluding": "12.5", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:watchguard:firebox_t15:-:*:*:*:*:*:*:*", "matchCriteriaId": "626220F8-7F0C-4DD8-8001-12EA0A777A0D", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_t35:-:*:*:*:*:*:*:*", "matchCriteriaId": "E561A57F-91A5-4B3C-9F7D-62E9AB5163A7", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:*", "matchCriteriaId": "9FEF8DD4-1432-4109-967A-B03188988266", "versionEndExcluding": "12.12.1", "versionStartIncluding": "12.0", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:a:watchguard:firebox_cloud:-:*:*:*:*:*:*:*", "matchCriteriaId": "BD0A5008-C4F7-434B-8C10-AEB5B1F9E071", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_m270:-:*:*:*:*:*:*:*", "matchCriteriaId": "E472917E-D6E1-4C2D-B37D-E76FCC7307CA", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_m290:-:*:*:*:*:*:*:*", "matchCriteriaId": "9A8C7779-4466-4A9E-B191-929E7746DFF7", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_m370:-:*:*:*:*:*:*:*", "matchCriteriaId": "6CE9A123-B769-4E56-845E-DC3DA6166C78", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_m390:-:*:*:*:*:*:*:*", "matchCriteriaId": "180FAE8C-2E73-4C09-AA11-0C82A7715FA3", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_m440:-:*:*:*:*:*:*:*", "matchCriteriaId": "309DBEF2-1D92-4641-827F-D99758B5FFA3", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_m4600:-:*:*:*:*:*:*:*", "matchCriteriaId": "D1E8CFC5-51FE-4D75-845F-D70C30AF11B0", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_m470:-:*:*:*:*:*:*:*", "matchCriteriaId": "BBFBA966-E052-4350-9544-3B5D484DBB6B", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_m4800:-:*:*:*:*:*:*:*", "matchCriteriaId": "EF1E586D-0E88-447A-95E8-5203EF869ADB", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_m5600:-:*:*:*:*:*:*:*", "matchCriteriaId": "1BC087C4-CB10-46D4-A746-0C462354410C", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_m570:-:*:*:*:*:*:*:*", "matchCriteriaId": "59389EA2-3067-4AF8-AEC5-FE79E269C170", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_m5800:-:*:*:*:*:*:*:*", "matchCriteriaId": "445FA7CD-D0AE-4176-9AE5-293B918DE654", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_m590:-:*:*:*:*:*:*:*", "matchCriteriaId": "1B4A7366-0304-431E-B3E4-719BA575CEAC", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_m670:-:*:*:*:*:*:*:*", "matchCriteriaId": "E8512B4A-5269-4067-B9C6-475A4E8AD313", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_m690:-:*:*:*:*:*:*:*", "matchCriteriaId": "179C6166-87E1-44F8-B727-CDDE40C673D9", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_nv5:-:*:*:*:*:*:*:*", "matchCriteriaId": "584107CC-6136-4AA1-AE68-73B93BDDB5B6", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_t20:-:*:*:*:*:*:*:*", "matchCriteriaId": "9295217E-C1A0-4A69-A0F0-C44814BB376C", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_t25:-:*:*:*:*:*:*:*", "matchCriteriaId": "7DC49246-2166-4681-8D67-4C0940884872", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_t40:-:*:*:*:*:*:*:*", "matchCriteriaId": "CC853916-8BDC-4F7C-BA53-D6AB490A9444", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_t45:-:*:*:*:*:*:*:*", "matchCriteriaId": "DCB1A254-DA3C-4032-B2C6-C9EBCE8EC15E", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_t55:-:*:*:*:*:*:*:*", "matchCriteriaId": "D3562304-0317-4A3C-B622-D5CE01CC97F9", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_t70:-:*:*:*:*:*:*:*", "matchCriteriaId": "327BA50A-366A-4367-93B8-328EC0136FA7", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_t80:-:*:*:*:*:*:*:*", "matchCriteriaId": "D92ABD52-20F6-4AB1-801F-9E7B7B1B78A1", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:firebox_t85:-:*:*:*:*:*:*:*", "matchCriteriaId": "3552F3BB-8021-4E87-987D-870699A7E619", "vulnerable": false}, {"criteria": "cpe:2.3:h:watchguard:fireboxv:-:*:*:*:*:*:*:*", "matchCriteriaId": "4ECAE1D7-9868-4730-B645-44CB1B6FDE96", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An authenticated administrator can trigger a denial-of-service condition in the Fireware Management Web UI by sending malformed or crafted data to the put_data endpoint, which performs unsafe deserialization of the attacker-supplied input."}], "id": "CVE-2026-13371", "lastModified": "2026-08-14T13:00:12.980", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 4.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.2, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.9, "baseSeverity": "MEDIUM", "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": "HIGH", "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:H/UI:N/VC:N/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": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "5d1c2695-1a31-4499-88ae-e847036fd7e3", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-13371", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-07-06T18:04:59.649744Z", "version": "2.0.3"}}]}, "published": "2026-07-03T00:16:51.013", "references": [{"source": "5d1c2695-1a31-4499-88ae-e847036fd7e3", "tags": ["Broken Link"], "url": "https://psirt.watchguard.com/CVE-2026-13371"}, {"source": "5d1c2695-1a31-4499-88ae-e847036fd7e3", "tags": ["Vendor Advisory"], "url": "https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00014"}], "sourceIdentifier": "5d1c2695-1a31-4499-88ae-e847036fd7e3", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-502"}], "source": "5d1c2695-1a31-4499-88ae-e847036fd7e3", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[12.0,12.12]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[12.5,12.5.18]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[2025.1,2026.2]"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Fireware OS", "source": "cna", "vendor": "WatchGuard"}, "product": "fireware_os", "vendor": "watchguard"}], "created": "2026-07-03T00:30:04.974618+00:00", "updated": "2026-08-01T21:15:04.717863+00:00", "vendors": ["watchguard", "watchguard$PRODUCT$fireware_os"]}