CVE-2026-22081

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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 missing HTTPOnly flag for session cookies associated with the web-based administrative interface. A remote at-tacker could exploit this vulnerability by capturing session cookies transmitted over an insecure HTTP connection.\n\nSuccessful exploitation of this vulnerability could allow the attacker to obtain sensitive information and gain unau-thorized access to the targeted device."}, {"lang": "es", "value": "Esta vulnerabilidad existe en routers inal\u00e1mbricos Tenda (Router Inal\u00e1mbrico de 300Mbps F3 y Router de F\u00e1cil Configuraci\u00f3n N300) debido a la ausencia de la bandera HTTPOnly para las cookies de sesi\u00f3n asociadas con la interfaz administrativa basada en web. Un atacante remoto podr\u00eda explotar esta vulnerabilidad al capturar cookies de sesi\u00f3n transmitidas a trav\u00e9s de una conexi\u00f3n HTTP insegura.\n\nLa explotaci\u00f3n exitosa de esta vulnerabilidad podr\u00eda permitir al atacante obtener informaci\u00f3n sensible y obtener acceso no autorizado al dispositivo objetivo."}], "id": "CVE-2026-22081", "lastModified": "2026-06-17T10:19:26.790", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.8, "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:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:L/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": "LOW", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "vdisclose@cert-in.org.in", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-22081", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-01-09T16:44:27.653040Z", "version": "2.0.3"}}]}, "published": "2026-01-09T12:15:54.260", "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-1004"}], "source": "vdisclose@cert-in.org.in", "type": "Secondary"}]}

{}

{"analysis": {"en": {"generated_at": "2026-04-18T07:24:09.137713+00:00", "value": {"mitigation_remediation": ["Apply the vendor-published firmware update for the affected Tenda routers as outlined by the vendor documentation.", "Restrict administrative access to the router\u2019s web interface by disabling remote management when not required or limiting access to trusted IP addresses.", "Monitor router logs for anomalous login attempts and enforce strong, regularly changed passwords to reduce the risk of successful session hijacking."], "summary": {"action": "Immediate Patch", "impact": "Session hijacking and unauthorized administrative access"}, "threat_synthesis": {"affected_systems": "The affected products are the Tenda 300Mbps Wireless Router F3 and the N300 Easy Setup Router. No specific firmware version range is listed in the advisory, so all current models should be considered at risk until the vendor\u2019s update is applied.", "description_and_impact": "The vulnerability arises from the fact that session cookies used by the web\u2010based administrative interface of the Tenda 300Mbps Wireless Router F3 and the N300 Easy Setup Router are not set with the HTTPOnly flag. Without this flag, the cookies can be read by client\u2013side scripts or observed on the network if transmitted over plain HTTP, allowing a remote attacker to capture a valid session token. The attacker may then use the cookie to impersonate an authenticated administrator, gain privileged control over the device, and potentially read sensitive configuration data. This weakness is classified as CWE\u20111004 \u2013 \u201cCookie Not Secure or HTTPOnly\u201d.", "risk_and_exploitability": "The CVSS score of 8.8 indicates a high impact vulnerability, while the very low EPSS score (<1%) suggests that widespread exploitation is currently unlikely. The advisory does not list this vulnerability in the CISA KEV catalog, which means it has not yet been observed in the wild. The attack surface is remote; an attacker only needs network access to the router\u2019s web interface over HTTP, which is typically exposed on local or broader networks. Successful exploitation would grant the attacker administrator privileges, enabling configuration theft, persistence, or further lateral movement within the network."}}}}, "created": "2026-01-09T13:23:35.952286+00:00", "updated": "2026-04-18T07:30:36.031834+00:00", "vendors": ["tenda", "tenda$PRODUCT$f3", "tenda$PRODUCT$n300"]}