{“lastseen”:””,”description”:”This vulnerability exists in ZKTeco WL20 due to hard-coded private key stored in plaintext within the device firmware. An attacker with physical access could exploit this vulnerability by extracting the firmware and analyzing the binary data to retrieve private key stored in the firmware of the targeted device.\\n\\nSuccessful exploitation of this vulnerability could allow the attacker to perform unauthorized decryption of sensitive data and Man-in-the-Middle (MitM) attacks on the targeted device.”,”published”:”2025-08-13T11:23:53.500Z”,”modified”:”2025-08-13T11:23:53.500Z”,”type”:”cve”,”title”:”Hard-coded Private Key Vulnerability in ZKTeco WL20″,”source”:”CERT-In”,”references”:”https:\/\/www.cert-in.org.in\/s2cMainServlet?pageid=PUBVLNOTES01\\u0026VLCODE=CIVN-2025-0172″,”id”:”CVE-2025-55279″,”bulletinFamily”:””,”cwe”:[“CWE-798″],”cvelist”:null,”sourceData”:”ZKTeco Co WL20 Biometric Attendance System \\u003c=ZLM31-FXO1-3.1.8″,”sourceHref”:””,”cvss”:{“score”:6.9,”severity”:”MEDIUM”,”vector”:”CVSS:4.0\/AV:P\/AC:L\/AT:N\/PR:N\/UI:N\/VC:H\/VI:H\/VA:L\/SC:N\/SI:N\/SA:N”,”version”:”4.0″},”cvss2″:{},”cvss3″:{“version”:””,”vectorString”:””,”baseScore”:0,”baseSeverity”:””,”attackVector”:””,”attackComplexity”:””,”privilegesRequired”:””,”userInteraction”:””,”scope”:””,”confidentialityImpact”:””,”integrityImpact”:””,”availabilityImpact”:””,”cvssV3″:{“version”:””,”vectorString”:””,”baseScore”:0,”baseSeverity”:””,”attackVector”:””,”attackComplexity”:””,”privilegesRequired”:””,”userInteraction”:””,”scope”:””,”confidentialityImpact”:””,”integrityImpact”:””,”availabilityImpact”:””}},”href”:””,”category_name”:”CVE”,”post_link”:””,”product”:”WL20 Biometric Attendance System”,”version”:”\\u003c=ZLM31-FXO1-3.1.8″,”vendor”:”ZKTeco Co”,”ai_description”:””,”ai_severity”:””,”ai_vendor”:””,”ai_product”:””,”ai_version”:””,”ai_score”:0}<\/p>\n","protected":false},"excerpt":{"rendered":"
{“lastseen”:””,”description”:”This vulnerability exists in ZKTeco WL20 due to hard-coded private key stored in plaintext within the device firmware. An attacker with physical access could exploit…<\/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":[6,8,48,12,21,13,7,11,5],"class_list":["post-10546","post","type-post","status-publish","format-standard","hentry","category-category_cve","tag-cve","tag-cvss","tag-cvss-69","tag-exploit","tag-medium","tag-news","tag-security","tag-tapic","tag-vulnerability"],"yoast_head":"\n