CVE-2026-44089

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-44089", "assignerOrgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6", "state": "PUBLISHED", "assignerShortName": "CERT-PL", "dateReserved": "2026-05-05T09:40:05.100Z", "datePublished": "2026-06-23T12:08:09.508Z", "dateUpdated": "2026-06-23T13:32:50.690Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unknown", "product": "EX1200L", "vendor": "Totolink", "versions": [{"status": "affected", "version": "9.3.5u.6146_B20201023", "versionType": "custom"}]}], "credits": [{"lang": "en", "type": "finder", "value": "Franciszek Malek"}], "datePublic": "2026-06-23T09:07:00.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Totolink&nbsp;EX1200L router is vulnerable to Buffer Overflow in the login functionality in&nbsp;<i>cgi-bin/cstecgi.cgi</i> endpoint.&nbsp;This vulnerability could be exploited to cause the program to crash and to execute code remotely. <span style=\"background-color: rgba(221, 223, 228, 0.1);\">This allows the attacker to perform actions as root including reading and editing data, as well as bricking the router.</span><br><br><span style=\"background-color: rgb(255, 255, 255);\">Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 9.3.5u.6146_B20201023 but may also affect other versions.</span><br>"}], "value": "Totolink\u00a0EX1200L router is vulnerable to Buffer Overflow in the login functionality in\u00a0cgi-bin/cstecgi.cgi endpoint.\u00a0This vulnerability could be exploited to cause the program to crash and to execute code remotely. This allows the attacker to perform actions as root including reading and editing data, as well as bricking the router.\n\nBecause vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 9.3.5u.6146_B20201023 but may also affect other versions."}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "ADJACENT", "baseScore": 9.4, "baseSeverity": "CRITICAL", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "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:H/SI:H/SA:H", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-121", "description": "CWE-121 Stack-based Buffer Overflow", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6", "shortName": "CERT-PL", "dateUpdated": "2026-06-23T12:08:09.508Z"}, "references": [{"tags": ["third-party-advisory"], "url": "https://cert.pl/en/posts/2026/06/CVE-2026-44089"}, {"tags": ["product"], "url": "https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/217/ids/36.html"}], "source": {"discovery": "EXTERNAL"}, "title": "Buffer Overflow in Totolink EX1200L router", "x_generator": {"engine": "Vulnogram 0.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-06-23T13:32:36.793478Z", "id": "CVE-2026-44089", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-23T13:32:50.690Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-44089", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-06-23T13:32:36.793478Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-23T13:32:47.226Z"}}], "cna": {"title": "Buffer Overflow in Totolink EX1200L router", "source": {"discovery": "EXTERNAL"}, "credits": [{"lang": "en", "type": "finder", "value": "Franciszek Malek"}], "metrics": [{"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 9.4, "Automatable": "NOT_DEFINED", "attackVector": "ADJACENT", "baseSeverity": "CRITICAL", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "subAvailabilityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Totolink", "product": "EX1200L", "versions": [{"status": "affected", "version": "9.3.5u.6146_B20201023", "versionType": "custom"}], "defaultStatus": "unknown"}], "datePublic": "2026-06-23T09:07:00.000Z", "references": [{"url": "https://cert.pl/en/posts/2026/06/CVE-2026-44089", "tags": ["third-party-advisory"]}, {"url": "https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/217/ids/36.html", "tags": ["product"]}], "x_generator": {"engine": "Vulnogram 0.2.0"}, "descriptions": [{"lang": "en", "value": "Totolink\u00a0EX1200L router is vulnerable to Buffer Overflow in the login functionality in\u00a0cgi-bin/cstecgi.cgi endpoint.\u00a0This vulnerability could be exploited to cause the program to crash and to execute code remotely. This allows the attacker to perform actions as root including reading and editing data, as well as bricking the router.\n\nBecause vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 9.3.5u.6146_B20201023 but may also affect other versions.", "supportingMedia": [{"type": "text/html", "value": "Totolink&nbsp;EX1200L router is vulnerable to Buffer Overflow in the login functionality in&nbsp;<i>cgi-bin/cstecgi.cgi</i> endpoint.&nbsp;This vulnerability could be exploited to cause the program to crash and to execute code remotely. <span style=\"background-color: rgba(221, 223, 228, 0.1);\">This allows the attacker to perform actions as root including reading and editing data, as well as bricking the router.</span><br><br><span style=\"background-color: rgb(255, 255, 255);\">Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 9.3.5u.6146_B20201023 but may also affect other versions.</span><br>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-121", "description": "CWE-121 Stack-based Buffer Overflow"}]}], "providerMetadata": {"orgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6", "shortName": "CERT-PL", "dateUpdated": "2026-06-23T12:08:09.508Z"}}}, "cveMetadata": {"cveId": "CVE-2026-44089", "state": "PUBLISHED", "dateUpdated": "2026-06-23T13:32:50.690Z", "dateReserved": "2026-05-05T09:40:05.100Z", "assignerOrgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6", "datePublished": "2026-06-23T12:08:09.508Z", "assignerShortName": "CERT-PL"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unknown", "product": "EX1200L", "vendor": "Totolink", "versions": [{"status": "affected", "version": "9.3.5u.6146_B20201023", "versionType": "custom"}]}], "source": "cvd@cert.pl"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Totolink\u00a0EX1200L router is vulnerable to Buffer Overflow in the login functionality in\u00a0cgi-bin/cstecgi.cgi endpoint.\u00a0This vulnerability could be exploited to cause the program to crash and to execute code remotely. This allows the attacker to perform actions as root including reading and editing data, as well as bricking the router.\n\nBecause vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 9.3.5u.6146_B20201023 but may also affect other versions."}, {"lang": "es", "value": "El router Totolink EX1200L es vulnerable a un desbordamiento de b\u00fafer en la funcionalidad de inicio de sesi\u00f3n en el endpoint cgi-bin/cstecgi.cgi. Esta vulnerabilidad podr\u00eda ser explotada para causar el bloqueo del programa y para ejecutar c\u00f3digo de forma remota. Esto permite al atacante realizar acciones como root, incluyendo la lectura y edici\u00f3n de datos, as\u00ed como inutilizar el router.\n\nDebido a que los intentos de contacto con el proveedor no tuvieron \u00e9xito, la vulnerabilidad solo ha sido confirmada en la versi\u00f3n 9.3.5u.6146_B20201023, pero tambi\u00e9n podr\u00eda afectar a otras versiones."}], "id": "CVE-2026-44089", "lastModified": "2026-10-25T23:10:00.167", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "ADJACENT", "availabilityRequirement": "NOT_DEFINED", "baseScore": 9.4, "baseSeverity": "CRITICAL", "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": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "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:H/SI:H/SA:H/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": "cvd@cert.pl", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-44089", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-06-23T13:32:36.793478Z", "version": "2.0.3"}}]}, "published": "2026-06-23T13:16:40.400", "references": [{"source": "cvd@cert.pl", "url": "https://cert.pl/en/posts/2026/06/CVE-2026-44089"}, {"source": "cvd@cert.pl", "url": "https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/217/ids/36.html"}], "sourceIdentifier": "cvd@cert.pl", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-121"}], "source": "cvd@cert.pl", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "9.3.5u.6146_B20201023"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "EX1200L", "source": "cna", "vendor": "Totolink"}, "product": "ex1200l", "vendor": "totolink"}], "created": "2026-06-23T13:30:03.557157+00:00", "updated": "2026-06-23T15:15:04.523858+00:00", "vendors": ["totolink", "totolink$PRODUCT$ex1200l"]}