CVE-2026-22080

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "300Mbps Wireless Router F3 and N300 Easy Setup Router", "vendor": "Tenda", "versions": [{"status": "affected", "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"}]}], "source": "vdisclose@cert-in.org.in"}], "cveTags": [], "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."}, {"lang": "es", "value": "Esta vulnerabilidad existe en los routers inal\u00e1mbricos Tenda (Router Inal\u00e1mbrico de 300Mbps F3 y Router de F\u00e1cil Configuraci\u00f3n N300) debido a la transmisi\u00f3n de credenciales codificadas usando codificaci\u00f3n Base64 reversible a trav\u00e9s de la interfaz administrativa basada en web. Un atacante en la misma red podr\u00eda explotar esta vulnerabilidad interceptando el tr\u00e1fico de red y capturando las credenciales codificadas en Base64.\n\nLa explotaci\u00f3n exitosa de esta vulnerabilidad podr\u00eda permitir al atacante obtener informaci\u00f3n sensible y conseguir acceso no autorizado al dispositivo objetivo."}], "id": "CVE-2026-22080", "lastModified": "2026-06-17T10:19:26.680", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "ADJACENT", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.7, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "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/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", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "vdisclose@cert-in.org.in", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-22080", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-01-09T15:12:38.102200Z", "version": "2.0.3"}}]}, "published": "2026-01-09T11:15:51.150", "references": [{"source": "vdisclose@cert-in.org.in", "url": "https://www.cert-in.org.in/s2cMainServlet?pageid=PUBVLNOTES01&VLCODE=CIVN-2026-0004"}], "sourceIdentifier": "vdisclose@cert-in.org.in", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-319"}], "source": "vdisclose@cert-in.org.in", "type": "Secondary"}]}

{}

{"analysis": {"en": {"generated_at": "2026-04-18T07:24:31.021022+00:00", "value": {"mitigation_remediation": ["Apply the vendor's firmware patch from the documented URL", "Configure the router to use HTTPS for the administrative interface or disable the web\u2011based console if not needed", "Change the default administrator password to a strong, unique value and enable WPA2 or WPA3 encryption on the wireless network to reduce the risk of packet capture"], "summary": {"action": "Patch Immediately", "impact": "Credential Exposure"}, "threat_synthesis": {"affected_systems": "Vulnerable models include the Tenda 300Mbps Wireless Router F3 and the N300 Easy Setup Router, which are distributed globally for home and small office use. No specific firmware revision is listed, indicating that all releases of these models are affected unless a later firmware addresses the issue. The vulnerability applies regardless of the wireless standards used, affecting devices that rely on the web\u2011based admin portal.", "description_and_impact": "The Tenda 300Mbps Wireless Router F3 and N300 Easy Setup Router transmit administrative credentials using reversible Base64 encoding over the web interface. Decoding the captured data allows an attacker to read the username and password, providing direct access to the device's configuration and potentially the network. This flaw leads to compromising confidentiality of credentials and enables unauthorized administrative control of the router.", "risk_and_exploitability": "The flaw carries a CVSS v3.1 score of 8.7, classifying it as high severity. Exploit likelihood is low based on an EPSS score below 1%; however, devices are typically local to a network segment, making the attack vector local and the attacker capable of sniffing traffic with relative ease. The vulnerability is not yet represented in the CISA KEV catalog, but the available analysis indicates that an active Windows or Linux machine on the same network can capture the Base64 stream, decode it and immediately log into the router\u2019s administrative console."}}}}, "created": "2026-01-09T13:23:56.672833+00:00", "updated": "2026-04-18T07:30:36.032541+00:00", "vendors": ["tenda", "tenda$PRODUCT$f3", "tenda$PRODUCT$n300"]}