{"id":"CVE-2026-89052","title":"Hardcoded AES encryption key in Archer C6","summary":"A hardcoded cryptographic key management vulnerability exists in Archer C6 due to the use of a universal cryptographic key shared across devices. An attacker who obtains an encrypted configuration file or other protected credential data …","severity":"medium","cvss":5.9,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","cvssSource":"cna","cwe":["CWE-321"],"vendor":"TP-Link Systems Inc.","product":"Archer C6 V2","affected":["archer_c6_v2 < 1.2.1 Build 260902"],"published":"2026-10-21","updated":"2026-10-21","sourceUpdated":"2026-10-21T22:40:16.165Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-89052","references":[{"url":"https://www.tp-link.com/us/support/download/archer-c6/v2/#Firmware"},{"url":"https://www.tp-link.com/us/support/faq/5356/"}],"tags":["cve.org"],"ingestedAt":"2026-10-21T23:20:10.331Z","slug":"CVE-2026-89052","body":"## Overview\n\nA hardcoded cryptographic key management vulnerability exists in Archer C6 due to the use of a universal cryptographic key shared across devices. An attacker who obtains an encrypted configuration file or other protected credential data can recover plaintext credentials. \n\nSuccessful exploitation may allow unauthorized disclosure of sensitive information, including administrative credentials.\n\n## Affected\n\n- `archer_c6_v2 < 1.2.1 Build 260902`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":32,"depthScoreParts":{"impact":32.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}