{"id":"CVE-2026-102812","revision":"2b70bf93a6f64345a1b59acc548d2d17","records":[{"revision":"2b70bf93a6f64345a1b59acc548d2d17","observedAt":"2026-10-27T18:43:43.015+00:00","statement":{"source":"cve-program","id":"CVE-2026-102812","aliases":[],"title":"Hardcoded AES-128 Key and Fixed IV in Configuration Backup Encryption in TP-Link RE305 and Archer C7","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.\u00A0\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.","state":0,"publishedAt":"2026-10-27T17:40:13.729+00:00","modifiedAt":"2026-10-27T17:40:13.729+00:00","affected":[{"ecosystem":"Vendor product","name":"RE305 v3","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"TP-Link Systems Inc.\",\n                    \"product\": \"RE305 v3\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"lessThan\": \"1.1.8 Build 20260921 Rel. 42853\",\n                            \"versionType\": \"custom\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"},{"ecosystem":"Vendor product","name":"Archer C7 v5","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"TP-Link Systems Inc.\",\n                    \"product\": \"Archer C7 v5\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"lessThan\": \"1.3.1 Build 20260821 Rel. 41256\",\n                            \"versionType\": \"custom\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 4.0","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,"severity":"MEDIUM"}],"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/"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-102812","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-102812","identifiers":["CVE-2026-102812"]},"retained":false,"historicalAffected":[]}],"coverage":[]}