{"id":"CVE-2026-22080","state":"PUBLISHED","title":"Insecure Transmission Vulnerability in Tenda Wireless Routers","description":"This vulnerability exists in Tenda wireless routers (300Mbps Wireless Router F3 and N300 Easy Setup Router) due to the transmission of credentials encoded using reversible Base64 encoding through the web-based administrative interface. An attacker on the same network could exploit this vulnerability by intercepting network traffic and capturing the Base64-encoded credentials.\n\nSuccessful exploitation of this vulnerability could allow the attacker to obtain sensitive information and gain unauthorized access to the targeted device.","publishedAt":"2026-01-09T11:05:07.368Z","updatedAt":"2026-01-09T15:12:48.077Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","source":"CERT-In"},"assigner":"CERT-In","products":["Tenda 300Mbps Wireless Router F3 and N300 Easy Setup Router"],"affected":[{"vendor":"Tenda","product":"300Mbps Wireless Router F3 and N300 Easy Setup Router","defaultStatus":"unaffected","versions":[{"version":"F3 v3.0 Firmware V12.01.01.41","status":"affected"},{"version":"F3 v3.0 Firmware V12.01.01.42","status":"affected"},{"version":"F3 v3.0 Firmware V12.01.01.48","status":"affected"},{"version":"F3 v3.0 Firmware V12.01.01.52","status":"affected"},{"version":"F3 v3.0 Firmware V12.01.01.55","status":"affected"},{"version":"F3 v4.0 Firmware V03.03.01.40","status":"affected"}]}],"references":["https://www.cert-in.org.in/s2cMainServlet?pageid=PUBVLNOTES01&VLCODE=CIVN-2026-0004"],"weaknesses":["CWE-319"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/22xxx/CVE-2026-22080.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-22080","state":"PUBLISHED","datePublished":"2026-01-09T11:05:07.368Z","dateUpdated":"2026-01-09T15:12:48.077Z","assignerShortName":"CERT-In","assignerOrgId":"66834db9-ab24-42b4-be80-296b2e40335c","dateReserved":"2026-01-06T07:52:50.901Z"},"containers":{"cna":{"title":"Insecure Transmission Vulnerability in Tenda Wireless Routers","descriptions":[{"lang":"en","value":"This vulnerability exists in Tenda wireless routers (300Mbps Wireless Router F3 and N300 Easy Setup Router) due to the transmission of credentials encoded using reversible Base64 encoding through the web-based administrative interface. An attacker on the same network could exploit this vulnerability by intercepting network traffic and capturing the Base64-encoded credentials.\n\nSuccessful exploitation of this vulnerability could allow the attacker to obtain sensitive information and gain unauthorized access to the targeted device."}],"affected":[{"vendor":"Tenda","product":"300Mbps Wireless Router F3 and N300 Easy Setup Router","defaultStatus":"unaffected","versions":[{"version":"F3 v3.0 Firmware V12.01.01.41","status":"affected"},{"version":"F3 v3.0 Firmware V12.01.01.42","status":"affected"},{"version":"F3 v3.0 Firmware V12.01.01.48","status":"affected"},{"version":"F3 v3.0 Firmware V12.01.01.52","status":"affected"},{"version":"F3 v3.0 Firmware V12.01.01.55","status":"affected"},{"version":"F3 v4.0 Firmware V03.03.01.40","status":"affected"}]}],"references":[{"url":"https://www.cert-in.org.in/s2cMainServlet?pageid=PUBVLNOTES01&VLCODE=CIVN-2026-0004","tags":["third-party-advisory"]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"ADJACENT","baseScore":8.7,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-319","description":"CWE-319 Cleartext Transmission of Sensitive Information","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"CERT-In","orgId":"66834db9-ab24-42b4-be80-296b2e40335c","dateUpdated":"2026-01-09T11:26:07.261Z"},"credits":[{"lang":"en","type":"finder","value":"This vulnerability is reported by Deven Lunkad, Swaroop Dora, Naziya Aslam, and S. Venkatesan from IoT Security Research Lab, Indian Institute of Information Technology, Allahabad, India."}],"impacts":[{"capecId":"CAPEC-117","descriptions":[{"lang":"en","value":"CAPEC-117 Interception"}]}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Apply appropriate updates as mentioned by the vendor:<br><a target=\"_blank\" rel=\"nofollow\" href=\"https://www.tendacn.com/in/material/show/724624313163845\">https://www.tendacn.com/in/material/show/724624313163845</a><br><br>"}],"value":"Apply appropriate updates as mentioned by the vendor:\n https://www.tendacn.com/in/material/show/724624313163845"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.5.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-01-09T15:12:38.102200Z","id":"CVE-2026-22080","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-01-09T15:12:48.077Z"}}]}}}