{"affected":[{"defaultStatus":"unaffected","product":"RE305 v3","source":"CNA: TPLink","vendor":"TP-Link Systems Inc.","versions":[{"lessThan":"1.1.8 Build 20260921 Rel. 42853","status":"affected","version":"0","versionType":"custom"}]},{"defaultStatus":"unaffected","product":"Archer C7 v5","source":"CNA: TPLink","vendor":"TP-Link Systems Inc.","versions":[{"lessThan":"1.3.1 Build 20260821 Rel. 41256","status":"affected","version":"0","versionType":"custom"}]}],"cveId":"CVE-2026-102812","cwes":["CWE-321"],"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.","epss":{"date":"2026-11-04","percentile":0.0185,"score":0.0012},"exploits":[],"kev":null,"metrics":[{"score":6.9,"severity":"medium","source":"CNA: 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","version":"4.0"},{"score":6.9,"severity":"medium","source":"NVD: f23511db-6c3e-4e32-a477-6aa17d310630","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/E:X/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","version":"4.0"}],"modifiedAt":1793812645510,"publishedAt":1793122813729,"references":[{"source":"CNA: TPLink","tags":["patch"],"url":"https://www.tp-link.com/us/support/download/re305/v3/#Firmware"},{"source":"CNA: TPLink","tags":["patch"],"url":"https://www.tp-link.com/en/support/download/re305/v3/#Firmware"},{"source":"CNA: TPLink","tags":["patch"],"url":"https://www.tp-link.com/en/support/download/archer-c7/v5/#Firmware"},{"source":"CNA: TPLink","tags":["patch"],"url":"https://www.tp-link.com/us/support/download/archer-c7/v5/#Firmware"},{"source":"CNA: TPLink","tags":["vendor-advisory"],"url":"https://www.tp-link.com/us/support/faq/5362/"},{"source":"f23511db-6c3e-4e32-a477-6aa17d310630","tags":[],"url":"https://www.tp-link.com/en/support/download/archer-c7/v5/#Firmware"},{"source":"f23511db-6c3e-4e32-a477-6aa17d310630","tags":[],"url":"https://www.tp-link.com/en/support/download/re305/v3/#Firmware"},{"source":"f23511db-6c3e-4e32-a477-6aa17d310630","tags":[],"url":"https://www.tp-link.com/us/support/download/archer-c7/v5/#Firmware"},{"source":"f23511db-6c3e-4e32-a477-6aa17d310630","tags":[],"url":"https://www.tp-link.com/us/support/download/re305/v3/#Firmware"},{"source":"f23511db-6c3e-4e32-a477-6aa17d310630","tags":[],"url":"https://www.tp-link.com/us/support/faq/5362/"}],"remediation":[{"kind":"fix","source":"CNA: TPLink","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://www.tp-link.com/us/support/download/re305/v3/#Firmware"},{"kind":"fix","source":"CNA: TPLink","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://www.tp-link.com/en/support/download/re305/v3/#Firmware"},{"kind":"fix","source":"CNA: TPLink","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://www.tp-link.com/en/support/download/archer-c7/v5/#Firmware"},{"kind":"fix","source":"CNA: TPLink","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://www.tp-link.com/us/support/download/archer-c7/v5/#Firmware"}],"revision":"097da87b8aa873053398a3f616f20eaad775715817a02e465ba883c7c508b75c","sources":[{"modifiedAt":1793811590707,"name":"CNA: TPLink","retrievedAt":1793812114944,"url":"https://www.cve.org/CVERecord?id=CVE-2026-102812"},{"modifiedAt":1793812645510,"name":"NVD","retrievedAt":1793816546625,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-102812"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793812129811,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-102812"}],"ssvc":{"assessedAt":1793811579254,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"Hardcoded AES-128 Key and Fixed IV in Configuration Backup Encryption in TP-Link RE305 and Archer C7","updatedAt":1793816546625}