CVE-2026-3273

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The attack can be executed remotely. The exploit is publicly available and might be used."}, {"lang": "es", "value": "Se identific\u00f3 una vulnerabilidad en Tenda F453 1.0.0.3. Afectada por esta vulnerabilidad es la funci\u00f3n formWrlsafeset del archivo /goform/AdvSetWrlsafeset del componente httpd. Dicha manipulaci\u00f3n del argumento mit_ssid_index conduce a un desbordamiento de b\u00fafer. El ataque puede ejecutarse remotamente. El exploit est\u00e1 disponible p\u00fablicamente y podr\u00eda ser utilizado."}], "id": "CVE-2026-3273", "lastModified": "2026-06-17T10:43:19.173", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "COMPLETE", "baseScore": 9.0, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "cna@vuldb.com", "type": "Secondary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "cna@vuldb.com", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 7.4, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "PROOF_OF_CONCEPT", "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": "LOW", "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:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/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": "cna@vuldb.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-3273", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-03-02T18:59:52.936356Z", "version": "2.0.3"}}]}, "published": "2026-02-27T01:16:21.143", "references": [{"source": "cna@vuldb.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/Litengzheng/vul_db/blob/main/F453/vul_73/README.md"}, {"source": "cna@vuldb.com", "tags": ["Permissions Required", "VDB Entry"], "url": "https://vuldb.com/?ctiid.347997"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/?id.347997"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/?submit.759606"}, {"source": "cna@vuldb.com", "tags": ["Product"], "url": "https://www.tenda.com.cn/"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-119"}, {"lang": "en", "value": "CWE-120"}], "source": "cna@vuldb.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "1.0.0.3"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "F453", "source": "cna", "vendor": "Tenda"}, "product": "f453", "vendor": "tenda"}], "analysis": {"en": {"generated_at": "2026-04-16T15:45:43.434937+00:00", "value": {"mitigation_remediation": ["Upgrade the router to the latest available firmware that addresses the buffer overflow in the formWrlsafeset endpoint.", "If a newer firmware version is not available, disable remote web management or block the /goform/AdvSetWrlsafeset URL with a firewall rule to prevent external access to the vulnerable function.", "Restrict access to the router\u2019s administrative interface to trusted local users only and enforce strong authentication to reduce the window of opportunity for an attacker."], "summary": {"action": "Immediate Patch", "impact": "Remote Code Execution"}, "threat_synthesis": {"affected_systems": "The vulnerability impacts Tenda routers manufactured as the F453 model, specifically firmware version 1.0.0.3. Devices with earlier firmware may be unaffected, but no versions below 1.0.0.3 are confirmed to be safe. Any system running this firmware and exposed to the Internet is therefore at risk.", "description_and_impact": "A buffer overflow flaw exists in the formWrlsafeset function of the Tenda F453 router\u2019s web administration interface. By manipulating the mit_ssid_index argument sent to /goform/AdvSetWrlsafeset, an attacker can overflow a memory buffer, potentially allowing arbitrary code execution on the device. The flaw falls under non\u2011local buffer overflow weaknesses such as CWE\u2011119 and CWE\u2011120, and it can be triggered entirely over the network without requiring local access.", "risk_and_exploitability": "The CVSS score of 8.7 classifies this issue as high severity. An EPSS value of less than 1\u202f% indicates that, while exploitation is technically possible, it is not widely automated. The flaw is not yet listed in the CISA KEV catalog. Because it can be triggered remotely via the web interface, the attack surface is broad and the potential impact is full remote code execution. Publicly available proof\u2011of\u2011concept exploits confirm that a remote attacker can gain control of the device, underscoring the urgency of a fix."}}}}, "created": "2026-02-27T09:03:13.436938+00:00", "updated": "2026-04-16T16:00:13.858826+00:00", "vendors": ["tenda", "tenda$PRODUCT$f453"]}