{"api_version":"1","generated_at":"2026-11-12T12:53:31+00:00","cve":"CVE-2026-124058","urls":{"html":"https://cve.report/CVE-2026-124058","api":"https://cve.report/api/cve/CVE-2026-124058.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-124058","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-124058"},"summary":{"title":"TOTOLINK CA300-PoE cstecgi.cgi setWiFiRepeaterConfig buffer overflow","description":"A weakness has been identified in TOTOLINK CA300-PoE 6.2c.884. Affected is the function setWiFiRepeaterConfig of the file /cgi-bin/cstecgi.cgi. Executing a manipulation of the argument ApCliKeyStr can lead to buffer overflow. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks.","state":"PUBLISHED","assigner":"VulDB","published_at":"2026-11-07 19:17:28","updated_at":"2026-11-12 12:18:21"},"problem_types":["CWE-119","CWE-120","CWE-120 Buffer Overflow","CWE-119 Memory Corruption"],"metrics":[{"version":"4.0","source":"cna@vuldb.com","type":"Secondary","score":"8.5","severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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","data":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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","baseScore":8.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"HIGH","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","subAvailabilityImpact":"HIGH","exploitMaturity":"PROOF_OF_CONCEPT","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}},{"version":"4.0","source":"CNA","type":"DECLARED","score":"9.4","severity":"CRITICAL","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P","data":{"baseScore":9.4,"baseSeverity":"CRITICAL","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P","version":"4.0"}},{"version":"3.1","source":"cna@vuldb.com","type":"Secondary","score":"9.1","severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","baseScore":9.1,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"9.1","severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C","data":{"baseScore":9.1,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C","version":"3.1"}},{"version":"3.0","source":"CNA","type":"DECLARED","score":"9.1","severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C","data":{"baseScore":9.1,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C","version":"3.0"}},{"version":"2.0","source":"cna@vuldb.com","type":"Secondary","score":"8.3","severity":"","vector":"AV:N/AC:L/Au:M/C:C/I:C/A:C","data":{"version":"2.0","vectorString":"AV:N/AC:L/Au:M/C:C/I:C/A:C","baseScore":8.3,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"MULTIPLE","confidentialityImpact":"COMPLETE","integrityImpact":"COMPLETE","availabilityImpact":"COMPLETE"}},{"version":"2.0","source":"CNA","type":"DECLARED","score":"8.3","severity":"","vector":"AV:N/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:C","data":{"baseScore":8.3,"vectorString":"AV:N/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:C","version":"2.0"}}],"references":[{"url":"https://vuldb.com/vuln/432113","name":"https://vuldb.com/vuln/432113","refsource":"cna@vuldb.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://vuldb.com/cve/CVE-2026-124058","name":"https://vuldb.com/cve/CVE-2026-124058","refsource":"cna@vuldb.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://vuldb.com/submit/1033755","name":"https://vuldb.com/submit/1033755","refsource":"cna@vuldb.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.totolink.net/","name":"https://www.totolink.net/","refsource":"cna@vuldb.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://lavender-bicycle-a5a.notion.site/TOTOLINK-CA300-PoE-setWiFiRepeaterConfig-3f953a41781f80349879d9aca7c4702a?source=copy_link","name":"https://lavender-bicycle-a5a.notion.site/TOTOLINK-CA300-PoE-setWiFiRepeaterConfig-3f953a41781f80349879d9aca7c4702a?source=copy_link","refsource":"cna@vuldb.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://vuldb.com/vuln/432113/cti","name":"https://vuldb.com/vuln/432113/cti","refsource":"cna@vuldb.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-124058","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-124058","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"TOTOLINK","product":"CA300-PoE","version":"affected 6.2c.884","platforms":[]}],"timeline":[{"source":"CNA","time":"2026-11-06T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"source":"CNA","time":"2026-11-06T01:00:00.000Z","lang":"en","value":"VulDB entry created"},{"source":"CNA","time":"2026-11-06T20:59:15.000Z","lang":"en","value":"VulDB entry last update"}],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"wxhwxhwxh_mie (VulDB User)","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"124058","cve":"CVE-2026-124058","epss":"0.004930000","percentile":"0.426200000","score_date":"2026-11-09","updated_at":"2026-11-10 00:05:36"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-124058","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","timestamp":"2026-11-12T11:48:02.445409Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-11-12T11:48:41.578Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"cpes":["cpe:2.3:o:totolink:ca300-poe_firmware:*:*:*:*:*:*:*:*"],"product":"CA300-PoE","vendor":"TOTOLINK","versions":[{"status":"affected","version":"6.2c.884"}]}],"credits":[{"lang":"en","type":"reporter","value":"wxhwxhwxh_mie (VulDB User)"}],"descriptions":[{"lang":"en","value":"A weakness has been identified in TOTOLINK CA300-PoE 6.2c.884. Affected is the function setWiFiRepeaterConfig of the file /cgi-bin/cstecgi.cgi. Executing a manipulation of the argument ApCliKeyStr can lead to buffer overflow. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks."}],"metrics":[{"cvssV4_0":{"baseScore":9.4,"baseSeverity":"CRITICAL","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P","version":"4.0"}},{"cvssV3_1":{"baseScore":9.1,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C","version":"3.1"}},{"cvssV3_0":{"baseScore":9.1,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C","version":"3.0"}},{"cvssV2_0":{"baseScore":8.3,"vectorString":"AV:N/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:C","version":"2.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-120","description":"Buffer Overflow","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-119","description":"Memory Corruption","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-11-07T18:15:13.457Z","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","shortName":"VulDB"},"references":[{"name":"VDB-432113 | TOTOLINK CA300-PoE cstecgi.cgi setWiFiRepeaterConfig buffer overflow","tags":["vdb-entry","technical-description"],"url":"https://vuldb.com/vuln/432113"},{"name":"VDB-432113 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"],"url":"https://vuldb.com/vuln/432113/cti"},{"name":"CVE-2026-124058 | CVE Analysis and Report","tags":["third-party-advisory"],"url":"https://vuldb.com/cve/CVE-2026-124058"},{"name":"Submit #1033755 | TOTOLINK CA300-PoE CA300-PoE_Firmware V6.2c.884 Buffer Overflow","tags":["third-party-advisory"],"url":"https://vuldb.com/submit/1033755"},{"tags":["exploit"],"url":"https://lavender-bicycle-a5a.notion.site/TOTOLINK-CA300-PoE-setWiFiRepeaterConfig-3f953a41781f80349879d9aca7c4702a?source=copy_link"},{"tags":["product"],"url":"https://www.totolink.net/"}],"timeline":[{"lang":"en","time":"2026-11-06T00:00:00.000Z","value":"Advisory disclosed"},{"lang":"en","time":"2026-11-06T01:00:00.000Z","value":"VulDB entry created"},{"lang":"en","time":"2026-11-06T20:59:15.000Z","value":"VulDB entry last update"}],"title":"TOTOLINK CA300-PoE cstecgi.cgi setWiFiRepeaterConfig buffer overflow","x_generator":["VulDB PVTS v202611"]}},"cveMetadata":{"assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","assignerShortName":"VulDB","cveId":"CVE-2026-124058","datePublished":"2026-11-07T18:15:13.457Z","dateReserved":"2026-11-06T19:53:52.566Z","dateUpdated":"2026-11-12T11:48:41.578Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-11-07 19:17:28","lastModifiedDate":"2026-11-12 12:18:21","problem_types":["CWE-119","CWE-120","CWE-120 Buffer Overflow","CWE-119 Memory Corruption"],"metrics":{"cvssMetricV40":[{"source":"cna@vuldb.com","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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","baseScore":8.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"HIGH","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","subAvailabilityImpact":"HIGH","exploitMaturity":"PROOF_OF_CONCEPT","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"cvssMetricV31":[{"source":"cna@vuldb.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","baseScore":9.1,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.3,"impactScore":6}],"cvssMetricV2":[{"source":"cna@vuldb.com","type":"Secondary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:M/C:C/I:C/A:C","baseScore":8.3,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"MULTIPLE","confidentialityImpact":"COMPLETE","integrityImpact":"COMPLETE","availabilityImpact":"COMPLETE"},"baseSeverity":"HIGH","exploitabilityScore":6.4,"impactScore":10,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-11-12T11:48:02.445409Z","id":"CVE-2026-124058","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"124058","Ordinal":"1","Title":"TOTOLINK CA300-PoE cstecgi.cgi setWiFiRepeaterConfig buffer over","CVE":"CVE-2026-124058","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"124058","Ordinal":"1","NoteData":"A weakness has been identified in TOTOLINK CA300-PoE 6.2c.884. Affected is the function setWiFiRepeaterConfig of the file /cgi-bin/cstecgi.cgi. Executing a manipulation of the argument ApCliKeyStr can lead to buffer overflow. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks.","Type":"Description","Title":"TOTOLINK CA300-PoE cstecgi.cgi setWiFiRepeaterConfig buffer over"}]}}}