CVE-2026-1328

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Performing a manipulation of the argument ssid results in buffer overflow. The attack may be initiated remotely. The exploit is now public and may be used."}, {"lang": "es", "value": "Se detect\u00f3 una vulnerabilidad en Totolink NR1800X 9.1.0u.6279_B20210910. Afectada es la funci\u00f3n setWizardCfg del archivo /cgi-bin/cstecgi.cgi del componente POST Request Handler. Realizar una manipulaci\u00f3n del argumento ssid resulta en un desbordamiento de b\u00fafer. El ataque puede iniciarse de forma remota. El exploit ya es p\u00fablico y puede utilizarse."}], "id": "CVE-2026-1328", "lastModified": "2026-06-17T10:15:36.570", "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-2026-1328", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-01-22T16:14:38.515460Z", "version": "2.0.3"}}]}, "published": "2026-01-22T15:16:51.173", "references": [{"source": "cna@vuldb.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://lavender-bicycle-a5a.notion.site/TOTOLINK-NR1800X-setWizardCfg-2e453a41781f80568a54c9368082fbe9?source=copy_link"}, {"source": "cna@vuldb.com", "tags": ["Permissions Required", "VDB Entry"], "url": "https://vuldb.com/?ctiid.342304"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/?id.342304"}, {"source": "cna@vuldb.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/?submit.735792"}, {"source": "cna@vuldb.com", "tags": ["Product"], "url": "https://www.totolink.net/"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-119"}, {"lang": "en", "value": "CWE-120"}], "source": "cna@vuldb.com", "type": "Secondary"}]}

{}

{"analysis": {"en": {"generated_at": "2026-04-18T03:47:21.377546+00:00", "value": {"mitigation_remediation": ["Apply the latest firmware update that resolves the setWizardCfg buffer overflow.", "If a patch is not yet available, block or restrict remote POST traffic to /cgi-bin/cstecgi.cgi from untrusted networks using a firewall or access\u2011control list.", "Disable or isolate the router\u2019s management interfaces that expose the setWizardCfg endpoint, ensuring only trusted local connections can reach it."], "summary": {"action": "Patch Immediately", "impact": "Remote code execution via buffer overflow"}, "threat_synthesis": {"affected_systems": "The affected device is the Totolink NR1800X router running firmware version 9.1.0u.6279_B20210910. The flaw resides in the cstecgi.cgi component of the POST request handler.", "description_and_impact": "A buffer overflow occurs in the setWizardCfg function of the Totolink NR1800X firmware when the ssid parameter is supplied in a POST request. The vulnerability satisfies CWE-119 and CWE-120, enabling an attacker to corrupt memory and potentially execute arbitrary code. If successfully exploited, an attacker could gain remote control over the device, compromise network traffic, or disrupt service availability.", "risk_and_exploitability": "The CVSS score of 8.7 classifies this as high severity, yet the EPSS score of less than 1% indicates a very low current exploitation probability. The vulnerability is not listed in the CISA KEV catalog, but the public exploit is available and can be triggered remotely by sending a crafted POST request to the setWizardCfg endpoint."}}}}, "created": "2026-01-23T16:32:35.646896+00:00", "updated": "2026-04-18T04:00:08.404086+00:00", "vendors": ["totolink", "totolink$PRODUCT$nr1800x"]}