{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-5363","assignerOrgId":"f23511db-6c3e-4e32-a477-6aa17d310630","state":"PUBLISHED","assignerShortName":"TPLink","dateReserved":"2026-04-01T17:38:27.536Z","datePublished":"2026-04-15T23:45:54.271Z","dateUpdated":"2026-04-16T23:10:46.170Z"},"containers":{"cna":{"providerMetadata":{"orgId":"f23511db-6c3e-4e32-a477-6aa17d310630","shortName":"TPLink","dateUpdated":"2026-04-16T23:10:46.170Z"},"title":"Use of weak cryptographic key in TP-Link Archer C7","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-326","description":"CWE-326: Inadequate Encryption Strength","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-50","descriptions":[{"lang":"en","value":"CAPEC-50 Password Recovery Exploitation"}]}],"affected":[{"vendor":"TP-Link Systems Inc.","product":"Archer C7 v5 and v5.8","modules":["uhttpd"],"versions":[{"status":"affected","version":"0","lessThanOrEqual":"Build 20220715","versionType":"custom"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"Inadequate Encryption Strength vulnerability in TP-Link Archer C7 v5 and v5.8 (uhttpd modules) allows Password Recovery Exploitation. The web interface encrypts the admin password client-side using RSA-1024 before sending it to the router during login. \nAn adjacent attacker with the ability to intercept network traffic could potentially perform a brute-force or factorization attack against the 1024-bit RSA key to recover the plaintext administrator password, leading to unauthorized access and compromise of the device configuration.  This issue affects Archer C7: through Build 20220715.","supportingMedia":[{"type":"text/html","base64":false,"value":"Inadequate Encryption Strength vulnerability in TP-Link Archer C7 v5 and v5.8 (uhttpd modules) allows Password Recovery Exploitation.&nbsp;The web interface encrypts the admin password client-side using RSA-1024 before sending it to the router during login.&nbsp;\nAn adjacent attacker with the ability to intercept network traffic could potentially perform a brute-force or factorization attack against the 1024-bit RSA key to recover the plaintext administrator password, leading to unauthorized access and compromise of the device configuration.&nbsp;&nbsp;<p>This issue affects Archer C7: through Build 20220715.</p>"}]}],"tags":["unsupported-when-assigned"],"references":[{"url":"https://www.tp-link.com/us/support/faq/3562/"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"ADJACENT","attackComplexity":"HIGH","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"PROOF_OF_CONCEPT","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"MEDIUM","baseScore":5.4,"vectorString":"CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P"}}],"credits":[{"lang":"en","value":"Sérgio Silva (CYBERS3C)","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.1"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-16T13:17:25.657073Z","id":"CVE-2026-5363","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-04-16T13:17:48.532Z"}}]}}