{"id":56622,"date":"2026-05-24T17:27:32","date_gmt":"2026-05-24T17:27:32","guid":{"rendered":"https:\/\/zero.redgem.net\/?p=56622"},"modified":"2026-05-24T17:27:32","modified_gmt":"2026-05-24T17:27:32","slug":"besen-bs20-ev-charging-station-firmware-version-check-ui-layer","status":"publish","type":"post","link":"https:\/\/zero.redgem.net\/?p=56622","title":{"rendered":"Besen BS20 EV Charging Station Firmware Version Check ui layer_CVE-2026-9396"},"content":{"rendered":"<p>{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;A security flaw has been discovered in Besen BS20 EV Charging Station up to 20260426. Affected by this vulnerability is an unknown functionality of the component Firmware Version Check. The manipulation results in improper restriction of rendered ui layers. The attack can be executed remotely. A high complexity level is associated with this attack. The exploitation appears to be difficult. The original disclosure mentions, that \\&#8221;[t]hese vulnerabilities have been reported to Besen and we have received their acknowlegement that they are reviewing this as of April 2026.\\&#8221;&#8221;,&#8221;published&#8221;:&#8221;2026-05-24T20:15:11.018Z&#8221;,&#8221;modified&#8221;:&#8221;2026-05-24T20:15:11.018Z&#8221;,&#8221;type&#8221;:&#8221;cve&#8221;,&#8221;title&#8221;:&#8221;Besen BS20 EV Charging Station Firmware Version Check ui layer&#8221;,&#8221;source&#8221;:&#8221;VulDB&#8221;,&#8221;references&#8221;:&#8221;https:\/\/vuldb.com\/vuln\/365377\\nhttps:\/\/vuldb.com\/vuln\/365377\/cti\\nhttps:\/\/vuldb.com\/submit\/813575\\nhttps:\/\/github.com\/carfeii\/besen#finding-3-firmware-version-check-manipulation-and-ui-spoofing&#8221;,&#8221;id&#8221;:&#8221;CVE-2026-9396&#8243;,&#8221;bulletinFamily&#8221;:&#8221;&#8221;,&#8221;cwe&#8221;:[&#8220;CWE-1021&#8243;],&#8221;cvelist&#8221;:null,&#8221;sourceData&#8221;:&#8221;Besen BS20 EV Charging Station 20260426&#8243;,&#8221;sourceHref&#8221;:&#8221;&#8221;,&#8221;cvss&#8221;:{&#8220;score&#8221;:6.3,&#8221;severity&#8221;:&#8221;MEDIUM&#8221;,&#8221;vector&#8221;:&#8221;CVSS:4.0\/AV:N\/AC:H\/AT:N\/PR:N\/UI:N\/VC:N\/VI:L\/VA:N\/SC:N\/SI:N\/SA:N\/E:P&#8221;,&#8221;version&#8221;:&#8221;4.0&#8243;},&#8221;cvss2&#8243;:{},&#8221;cvss3&#8243;:{&#8220;version&#8221;:&#8221;&#8221;,&#8221;vectorString&#8221;:&#8221;&#8221;,&#8221;baseScore&#8221;:0,&#8221;baseSeverity&#8221;:&#8221;&#8221;,&#8221;attackVector&#8221;:&#8221;&#8221;,&#8221;attackComplexity&#8221;:&#8221;&#8221;,&#8221;privilegesRequired&#8221;:&#8221;&#8221;,&#8221;userInteraction&#8221;:&#8221;&#8221;,&#8221;scope&#8221;:&#8221;&#8221;,&#8221;confidentialityImpact&#8221;:&#8221;&#8221;,&#8221;integrityImpact&#8221;:&#8221;&#8221;,&#8221;availabilityImpact&#8221;:&#8221;&#8221;,&#8221;cvssV3&#8243;:{&#8220;version&#8221;:&#8221;&#8221;,&#8221;vectorString&#8221;:&#8221;&#8221;,&#8221;baseScore&#8221;:0,&#8221;baseSeverity&#8221;:&#8221;&#8221;,&#8221;attackVector&#8221;:&#8221;&#8221;,&#8221;attackComplexity&#8221;:&#8221;&#8221;,&#8221;privilegesRequired&#8221;:&#8221;&#8221;,&#8221;userInteraction&#8221;:&#8221;&#8221;,&#8221;scope&#8221;:&#8221;&#8221;,&#8221;confidentialityImpact&#8221;:&#8221;&#8221;,&#8221;integrityImpact&#8221;:&#8221;&#8221;,&#8221;availabilityImpact&#8221;:&#8221;&#8221;}},&#8221;href&#8221;:&#8221;&#8221;,&#8221;category_name&#8221;:&#8221;CVE&#8221;,&#8221;post_link&#8221;:&#8221;&#8221;,&#8221;product&#8221;:&#8221;BS20 EV Charging Station&#8221;,&#8221;version&#8221;:&#8221;20260426&#8243;,&#8221;vendor&#8221;:&#8221;Besen&#8221;,&#8221;ai_description&#8221;:&#8221;&#8221;,&#8221;ai_severity&#8221;:&#8221;&#8221;,&#8221;ai_vendor&#8221;:&#8221;&#8221;,&#8221;ai_product&#8221;:&#8221;&#8221;,&#8221;ai_version&#8221;:&#8221;&#8221;,&#8221;ai_score&#8221;:0}<\/p>\n","protected":false},"excerpt":{"rendered":"<p>{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;A security flaw has been discovered in Besen BS20 EV Charging Station up to 20260426. Affected by this vulnerability is an unknown functionality of the&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[6,8,23,12,21,13,7,11,5],"class_list":["post-56622","post","type-post","status-publish","format-standard","hentry","category-category_cve","tag-cve","tag-cvss","tag-cvss-63","tag-exploit","tag-medium","tag-news","tag-security","tag-tapic","tag-vulnerability"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Besen BS20 EV Charging Station Firmware Version Check ui layer_CVE-2026-9396 - zero redgem<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/zero.redgem.net\/?p=56622\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Besen BS20 EV Charging Station Firmware Version Check ui layer_CVE-2026-9396 - zero redgem\" \/>\n<meta property=\"og:description\" content=\"{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;A security flaw has been discovered in Besen BS20 EV Charging Station up to 20260426. 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