{"api_version":"1","generated_at":"2026-05-30T18:42:52+00:00","cve":"CVE-2026-9398","urls":{"html":"https://cve.report/CVE-2026-9398","api":"https://cve.report/api/cve/CVE-2026-9398.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-9398","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-9398"},"summary":{"title":"Besen BS20 EV Charging Station BLE/WiFi authentication replay","description":"A security vulnerability has been detected in Besen BS20 EV Charging Station up to 20260426. This affects an unknown part of the component BLE/WiFi. Such manipulation leads to authentication bypass by capture-replay. The attack must be carried out from within the local network. Attacks of this nature are highly complex. It is indicated that the exploitability is difficult. The original disclosure mentions, that \"[t]hese vulnerabilities have been reported to Besen and we have received their acknowlegement that they are reviewing this as of April 2026.\"","state":"PUBLISHED","assigner":"VulDB","published_at":"2026-05-24 21:16:32","updated_at":"2026-05-26 19:57:25"},"problem_types":["CWE-287","CWE-294","CWE-294 Authentication Bypass by Capture-replay","CWE-287 Improper Authentication"],"metrics":[{"version":"4.0","source":"cna@vuldb.com","type":"Secondary","score":"1.3","severity":"LOW","vector":"CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/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","data":{"version":"4.0","vectorString":"CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/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","baseScore":1.3,"baseSeverity":"LOW","attackVector":"ADJACENT","attackComplexity":"HIGH","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"PROOF_OF_CONCEPT","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}},{"version":"4.0","source":"CNA","type":"DECLARED","score":"2.3","severity":"LOW","vector":"CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P","data":{"baseScore":2.3,"baseSeverity":"LOW","vectorString":"CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P","version":"4.0"}},{"version":"3.1","source":"cna@vuldb.com","type":"Primary","score":"3.1","severity":"LOW","vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","baseScore":3.1,"baseSeverity":"LOW","attackVector":"ADJACENT_NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"3.1","severity":"LOW","vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R","data":{"baseScore":3.1,"baseSeverity":"LOW","vectorString":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R","version":"3.1"}},{"version":"3.0","source":"CNA","type":"DECLARED","score":"3.1","severity":"LOW","vector":"CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R","data":{"baseScore":3.1,"baseSeverity":"LOW","vectorString":"CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R","version":"3.0"}},{"version":"2.0","source":"cna@vuldb.com","type":"Secondary","score":"1.8","severity":"","vector":"AV:A/AC:H/Au:N/C:N/I:P/A:N","data":{"version":"2.0","vectorString":"AV:A/AC:H/Au:N/C:N/I:P/A:N","baseScore":1.8,"accessVector":"ADJACENT_NETWORK","accessComplexity":"HIGH","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"NONE"}},{"version":"2.0","source":"CNA","type":"DECLARED","score":"1.8","severity":"","vector":"AV:A/AC:H/Au:N/C:N/I:P/A:N/E:POC/RL:ND/RC:UR","data":{"baseScore":1.8,"vectorString":"AV:A/AC:H/Au:N/C:N/I:P/A:N/E:POC/RL:ND/RC:UR","version":"2.0"}}],"references":[{"url":"https://vuldb.com/vuln/365379","name":"https://vuldb.com/vuln/365379","refsource":"cna@vuldb.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://vuldb.com/submit/813577","name":"https://vuldb.com/submit/813577","refsource":"cna@vuldb.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://vuldb.com/vuln/365379/cti","name":"https://vuldb.com/vuln/365379/cti","refsource":"cna@vuldb.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/carfeii/besen#finding-5-unauthorized-tampering-of-charger-commands","name":"https://github.com/carfeii/besen#finding-5-unauthorized-tampering-of-charger-commands","refsource":"cna@vuldb.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-9398","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-9398","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Besen","product":"BS20 EV Charging Station","version":"affected 20260426","platforms":[]}],"timeline":[{"source":"CNA","time":"2026-05-24T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"source":"CNA","time":"2026-05-24T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"source":"CNA","time":"2026-05-24T08:24:19.000Z","lang":"en","value":"VulDB entry last update"}],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"carfeii (VulDB User)","lang":"en"},{"source":"CNA","value":"VulDB CNA Team","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"9398","cve":"CVE-2026-9398","epss":"0.000350000","percentile":"0.108350000","score_date":"2026-05-29","updated_at":"2026-05-30 00:13:25"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"cpes":["cpe:2.3:a:besen:bs20_ev_charging_station:*:*:*:*:*:*:*:*"],"modules":["BLE/WiFi"],"product":"BS20 EV Charging Station","vendor":"Besen","versions":[{"status":"affected","version":"20260426"}]}],"credits":[{"lang":"en","type":"reporter","value":"carfeii (VulDB User)"},{"lang":"en","type":"coordinator","value":"VulDB CNA Team"}],"descriptions":[{"lang":"en","value":"A security vulnerability has been detected in Besen BS20 EV Charging Station up to 20260426. This affects an unknown part of the component BLE/WiFi. Such manipulation leads to authentication bypass by capture-replay. The attack must be carried out from within the local network. Attacks of this nature are highly complex. It is indicated that the exploitability is difficult. The original disclosure mentions, that \"[t]hese vulnerabilities have been reported to Besen and we have received their acknowlegement that they are reviewing this as of April 2026.\""}],"metrics":[{"cvssV4_0":{"baseScore":2.3,"baseSeverity":"LOW","vectorString":"CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P","version":"4.0"}},{"cvssV3_1":{"baseScore":3.1,"baseSeverity":"LOW","vectorString":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R","version":"3.1"}},{"cvssV3_0":{"baseScore":3.1,"baseSeverity":"LOW","vectorString":"CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R","version":"3.0"}},{"cvssV2_0":{"baseScore":1.8,"vectorString":"AV:A/AC:H/Au:N/C:N/I:P/A:N/E:POC/RL:ND/RC:UR","version":"2.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-294","description":"Authentication Bypass by Capture-replay","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-287","description":"Improper Authentication","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-05-24T20:45:08.425Z","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","shortName":"VulDB"},"references":[{"name":"VDB-365379 | Besen BS20 EV Charging Station BLE/WiFi authentication replay","tags":["vdb-entry"],"url":"https://vuldb.com/vuln/365379"},{"name":"VDB-365379 | CTI Indicators (IOB, IOC, TTP)","tags":["signature","permissions-required"],"url":"https://vuldb.com/vuln/365379/cti"},{"name":"Submit #813577 | Besen EV Charging Station BS20 EV Charger Improper Authorization","tags":["third-party-advisory"],"url":"https://vuldb.com/submit/813577"},{"tags":["related"],"url":"https://github.com/carfeii/besen#finding-5-unauthorized-tampering-of-charger-commands"}],"timeline":[{"lang":"en","time":"2026-05-24T00:00:00.000Z","value":"Advisory disclosed"},{"lang":"en","time":"2026-05-24T02:00:00.000Z","value":"VulDB entry created"},{"lang":"en","time":"2026-05-24T08:24:19.000Z","value":"VulDB entry last update"}],"title":"Besen BS20 EV Charging Station BLE/WiFi authentication replay"}},"cveMetadata":{"assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","assignerShortName":"VulDB","cveId":"CVE-2026-9398","datePublished":"2026-05-24T20:45:08.425Z","dateReserved":"2026-05-24T06:19:03.634Z","dateUpdated":"2026-05-24T20:45:08.425Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-24 21:16:32","lastModifiedDate":"2026-05-26 19:57:25","problem_types":["CWE-287","CWE-294","CWE-294 Authentication Bypass by Capture-replay","CWE-287 Improper Authentication"],"metrics":{"cvssMetricV40":[{"source":"cna@vuldb.com","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/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","baseScore":1.3,"baseSeverity":"LOW","attackVector":"ADJACENT","attackComplexity":"HIGH","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"PROOF_OF_CONCEPT","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"cvssMetricV31":[{"source":"cna@vuldb.com","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","baseScore":3.1,"baseSeverity":"LOW","attackVector":"ADJACENT_NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":1.6,"impactScore":1.4}],"cvssMetricV2":[{"source":"cna@vuldb.com","type":"Secondary","cvssData":{"version":"2.0","vectorString":"AV:A/AC:H/Au:N/C:N/I:P/A:N","baseScore":1.8,"accessVector":"ADJACENT_NETWORK","accessComplexity":"HIGH","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"NONE"},"baseSeverity":"LOW","exploitabilityScore":3.2,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"9398","Ordinal":"1","Title":"Besen BS20 EV Charging Station BLE/WiFi authentication replay","CVE":"CVE-2026-9398","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"9398","Ordinal":"1","NoteData":"A security vulnerability has been detected in Besen BS20 EV Charging Station up to 20260426. This affects an unknown part of the component BLE/WiFi. Such manipulation leads to authentication bypass by capture-replay. The attack must be carried out from within the local network. Attacks of this nature are highly complex. It is indicated that the exploitability is difficult. The original disclosure mentions, that \"[t]hese vulnerabilities have been reported to Besen and we have received their acknowlegement that they are reviewing this as of April 2026.\"","Type":"Description","Title":"Besen BS20 EV Charging Station BLE/WiFi authentication replay"}]}}}