{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-5105", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "state": "PUBLISHED", "assignerShortName": "VulDB", "dateReserved": "2026-03-29T17:50:56.050Z", "datePublished": "2026-03-30T03:00:20.891Z", "dateUpdated": "2026-03-30T13:58:27.213Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-03-30T03:00:20.891Z"}, "title": "Totolink A3300R Parameter cstecgi.cgi setVpnPassCfg command injection", "problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-77", "lang": "en", "description": "Command Injection"}]}, {"descriptions": [{"type": "CWE", "cweId": "CWE-74", "lang": "en", "description": "Injection"}]}], "affected": [{"vendor": "Totolink", "product": "A3300R", "versions": [{"version": "17.0.0cu.557_b20221024", "status": "affected"}], "cpes": ["cpe:2.3:o:totolink:a3300r_firmware:*:*:*:*:*:*:*:*"], "modules": ["Parameter Handler"]}], "descriptions": [{"lang": "en", "value": "A vulnerability was detected in Totolink A3300R 17.0.0cu.557_b20221024. The affected element is the function setVpnPassCfg of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. Performing a manipulation of the argument pptpPassThru results in command injection. It is possible to initiate the attack remotely. The exploit is now public and may be used."}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 5.3, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P", "baseSeverity": "MEDIUM"}}, {"cvssV3_1": {"version": "3.1", "baseScore": 6.3, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R", "baseSeverity": "MEDIUM"}}, {"cvssV3_0": {"version": "3.0", "baseScore": 6.3, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R", "baseSeverity": "MEDIUM"}}, {"cvssV2_0": {"version": "2.0", "baseScore": 6.5, "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR"}}], "timeline": [{"time": "2026-03-29T00:00:00.000Z", "lang": "en", "value": "Advisory disclosed"}, {"time": "2026-03-29T01:00:00.000Z", "lang": "en", "value": "VulDB entry created"}, {"time": "2026-03-29T19:56:13.000Z", "lang": "en", "value": "VulDB entry last update"}], "credits": [{"lang": "en", "value": "LvHW (VulDB User)", "type": "reporter"}], "references": [{"url": "https://vuldb.com/vuln/354130", "name": "VDB-354130 | Totolink A3300R Parameter cstecgi.cgi setVpnPassCfg command injection", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/vuln/354130/cti", "name": "VDB-354130 | CTI Indicators (IOB, IOC, TTP, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/submit/779143", "name": "Submit #779143 | Totolink A3300R 17.0.0cu.557_b20221024 Command Injection", "tags": ["third-party-advisory"]}, {"url": "https://github.com/LvHongW/Vuln-of-totolink_A3300R/tree/main/A3300R_pptpPassThru_cmd_inject", "tags": ["exploit"]}, {"url": "https://www.totolink.net/", "tags": ["product"]}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-03-30T13:58:17.531799Z", "id": "CVE-2026-5105", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-30T13:58:27.213Z"}}]}}

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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:totolink:a3300r_firmware:17.0.0cu.557_b20221024:*:*:*:*:*:*:*", "matchCriteriaId": "DD39B647-3419-4C6D-A6A2-30F40822A27D", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:totolink:a3300r:-:*:*:*:*:*:*:*", "matchCriteriaId": "7F723A73-4B32-4F9E-B5DA-80134D4711C1", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability was detected in Totolink A3300R 17.0.0cu.557_b20221024. The affected element is the function setVpnPassCfg of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. Performing a manipulation of the argument pptpPassThru results in command injection. It is possible to initiate the attack remotely. The exploit is now public and may be used."}], "id": "CVE-2026-5105", "lastModified": "2026-03-30T15:40:01.770", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 6.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "[email protected]", "type": "Secondary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.4, "source": "[email protected]", "type": "Secondary"}, {"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": "[email protected]", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.3, "baseSeverity": "MEDIUM", "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:L/VI:L/VA:L/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": "LOW", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "[email protected]", "type": "Secondary"}]}, "published": "2026-03-30T04:16:09.680", "references": [{"source": "[email protected]", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/LvHongW/Vuln-of-totolink_A3300R/tree/main/A3300R_pptpPassThru_cmd_inject"}, {"source": "[email protected]", "tags": ["Permissions Required", "VDB Entry"], "url": "https://vuldb.com/submit/779143"}, {"source": "[email protected]", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/vuln/354130"}, {"source": "[email protected]", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://vuldb.com/vuln/354130/cti"}, {"source": "[email protected]", "tags": ["Product"], "url": "https://www.totolink.net/"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-74"}, {"lang": "en", "value": "CWE-77"}], "source": "[email protected]", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-77"}], "source": "[email protected]", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "17.0.0cu.557_b20221024"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "A3300R", "source": "cna", "vendor": "Totolink"}, "product": "a3300r", "vendor": "totolink"}], "analysis": {"en": {"generated_at": "2026-03-30T05:21:03.590612+00:00", "value": {"mitigation_remediation": ["Update firmware to the latest version that addresses the setVpnPassCfg command injection issue.", "If an update is unavailable, disable the PPTP passthrough feature or restrict access to the cstecgi.cgi endpoint.", "Restrict remote access to the router\u2019s administration interface to trusted network segments.", "Monitor router logs for anomalous command execution or unexpected network activity.", "Apply network segmentation or firewall rules to limit exposure of the device to the internet."], "summary": {"action": "Patch", "impact": "Arbitrary Command Execution"}, "threat_synthesis": {"affected_systems": "The affected systems are Totolink A3300R routers running firmware version 17.0.0cu.557_b20221024. No other vendors or product lines are listed as impacted in the CVE data.", "description_and_impact": "A command injection flaw exists in the setVpnPassCfg function of the cstecgi.cgi component on Totolink A3300R routers. By manipulating the pptpPassThru argument, an attacker can inject and execute arbitrary shell commands remotely, which can lead to full compromise of the device's configuration, data, and network connectivity. The weakness is reflected in the CVSS score of 5.3, indicating a moderate level of severity from a security standpoint.", "risk_and_exploitability": "The attack vector is remote, leveraging the router\u2019s web interface or API that accepts the pptpPassThru parameter. An exploit is publicly available, and no official CISA KEV listing is attached, but the public availability of the exploit combined with the absence of a patch raises the risk of abuse. Although the EPSS score is not provided, the remote command execution potential warrants heightened vigilance and timely firmware remediation."}}}}, "created": "2026-03-30T06:57:53.216019+00:00", "updated": "2026-03-30T07:03:43.120403+00:00", "vendors": ["totolink", "totolink$PRODUCT$a3300r"]}