{"id":"CVE-2026-102812","aliases":[],"title":"Hardcoded AES-128 Key and Fixed IV in Configuration Backup Encryption in TP-Link RE305 and Archer C7","titleSource":"TPLink","descriptionSource":"TPLink","products":[{"vendor":"TP-Link Systems Inc.","name":"RE305 v3","platforms":[],"versions":[{"version":"0","status":"affected","lessThan":"1.1.8 Build 20260921 Rel. 42853","versionType":"custom"}],"defaultStatus":"unaffected","source":"TPLink","url":"https://www.cve.org/CVERecord?id=CVE-2026-102812"},{"vendor":"TP-Link Systems Inc.","name":"Archer C7 v5","platforms":[],"versions":[{"version":"0","status":"affected","lessThan":"1.3.1 Build 20260821 Rel. 41256","versionType":"custom"}],"defaultStatus":"unaffected","source":"TPLink","url":"https://www.cve.org/CVERecord?id=CVE-2026-102812"}],"remediation":[],"description":"A hard-coded\ncryptographic key vulnerability exists in the user-configuration backup\nmechanism of TP-Link RE305 V3 and Archer C7 V5. A fixed AES-128 key and\ninitialization vector are embedded in the firmware configuration-management\ncomponent. An attacker who obtains an affected configuration backup file may\nextract the cryptographic material from the firmware and use it to decrypt the\nbackup. \n\n\n\n\n\n\n\n\n\nSuccessful\nexploitation may disclose sensitive configuration information contained in a\nbackup file, including administrator passwords and Wi-Fi credentials.","severity":"medium","score":6.9,"published":"2026-10-27T17:40:13.729Z","modified":"2026-10-27T17:40:13.729Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://www.tp-link.com/us/support/download/re305/v3/#Firmware","https://www.tp-link.com/en/support/download/re305/v3/#Firmware","https://www.tp-link.com/en/support/download/archer-c7/v5/#Firmware","https://www.tp-link.com/us/support/download/archer-c7/v5/#Firmware","https://www.tp-link.com/us/support/faq/5362/"],"sources":[{"name":"CVE","id":"CVE-2026-102812","modified":"2026-10-27T17:40:13.729Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-102812"}],"assessments":[{"source":"TPLink","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","score":6.9}],"sourceAffected":[],"kev":{"status":"not-listed","checkedAt":"2026-10-28T15:45:31.007Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}