{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-5975", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "state": "PUBLISHED", "assignerShortName": "VulDB", "dateReserved": "2026-04-09T12:11:38.421Z", "datePublished": "2026-04-09T19:45:18.440Z", "dateUpdated": "2026-04-09T20:10:54.661Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-04-09T19:45:18.440Z"}, "title": "Totolink A7100RU CGI cstecgi.cgi setDmzCfg os command injection", "problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-78", "lang": "en", "description": "OS Command Injection"}]}, {"descriptions": [{"type": "CWE", "cweId": "CWE-77", "lang": "en", "description": "Command Injection"}]}], "affected": [{"vendor": "Totolink", "product": "A7100RU", "versions": [{"version": "7.4cu.2313_b20191024", "status": "affected"}], "cpes": ["cpe:2.3:o:totolink:a7100ru_firmware:*:*:*:*:*:*:*:*"], "modules": ["CGI Handler"]}], "descriptions": [{"lang": "en", "value": "A vulnerability was identified in Totolink A7100RU 7.4cu.2313_b20191024. The impacted element is the function setDmzCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument wanIdx leads to os command injection. The attack may be performed from remote. The exploit is publicly available and might be used."}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 9.3, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P", "baseSeverity": "CRITICAL"}}, {"cvssV3_1": {"version": "3.1", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R", "baseSeverity": "CRITICAL"}}, {"cvssV3_0": {"version": "3.0", "baseScore": 9.8, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R", "baseSeverity": "CRITICAL"}}, {"cvssV2_0": {"version": "2.0", "baseScore": 10, "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR"}}], "timeline": [{"time": "2026-04-09T00:00:00.000Z", "lang": "en", "value": "Advisory disclosed"}, {"time": "2026-04-09T02:00:00.000Z", "lang": "en", "value": "VulDB entry created"}, {"time": "2026-04-09T14:16:55.000Z", "lang": "en", "value": "VulDB entry last update"}], "credits": [{"lang": "en", "value": "LtzHuster2 (VulDB User)", "type": "reporter"}], "references": [{"url": "https://vuldb.com/vuln/356529", "name": "VDB-356529 | Totolink A7100RU CGI cstecgi.cgi setDmzCfg os command injection", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/vuln/356529/cti", "name": "VDB-356529 | CTI Indicators (IOB, IOC, TTP, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/submit/791821", "name": "Submit #791821 | Totolink A7100RU 7.4cu.2313_b20191024 Command Injection", "tags": ["third-party-advisory"]}, {"url": "https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_161/README.md", "tags": ["exploit"]}, {"url": "https://www.totolink.net/", "tags": ["product"]}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-04-09T20:10:25.722457Z", "id": "CVE-2026-5975", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"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": "2026-04-09T20:10:54.661Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-5975", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-04-09T20:10:25.722457Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-09T20:10:46.559Z"}}], "cna": {"title": "Totolink A7100RU CGI cstecgi.cgi setDmzCfg os command injection", "credits": [{"lang": "en", "type": "reporter", "value": "LtzHuster2 (VulDB User)"}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 9.3, "baseSeverity": "CRITICAL", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P"}}, {"cvssV3_1": {"version": "3.1", "baseScore": 9.8, "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R"}}, {"cvssV3_0": {"version": "3.0", "baseScore": 9.8, "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R"}}, {"cvssV2_0": {"version": "2.0", "baseScore": 10, "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR"}}], "affected": [{"cpes": ["cpe:2.3:o:totolink:a7100ru_firmware:*:*:*:*:*:*:*:*"], "vendor": "Totolink", "modules": ["CGI Handler"], "product": "A7100RU", "versions": [{"status": "affected", "version": "7.4cu.2313_b20191024"}]}], "timeline": [{"lang": "en", "time": "2026-04-09T00:00:00.000Z", "value": "Advisory disclosed"}, {"lang": "en", "time": "2026-04-09T02:00:00.000Z", "value": "VulDB entry created"}, {"lang": "en", "time": "2026-04-09T14:16:55.000Z", "value": "VulDB entry last update"}], "references": [{"url": "https://vuldb.com/vuln/356529", "name": "VDB-356529 | Totolink A7100RU CGI cstecgi.cgi setDmzCfg os command injection", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/vuln/356529/cti", "name": "VDB-356529 | CTI Indicators (IOB, IOC, TTP, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/submit/791821", "name": "Submit #791821 | Totolink A7100RU 7.4cu.2313_b20191024 Command Injection", "tags": ["third-party-advisory"]}, {"url": "https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_161/README.md", "tags": ["exploit"]}, {"url": "https://www.totolink.net/", "tags": ["product"]}], "descriptions": [{"lang": "en", "value": "A vulnerability was identified in Totolink A7100RU 7.4cu.2313_b20191024. The impacted element is the function setDmzCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument wanIdx leads to os command injection. The attack may be performed from remote. The exploit is publicly available and might be used."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-78", "description": "OS Command Injection"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-77", "description": "Command Injection"}]}], "providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-04-09T19:45:18.440Z"}}}, "cveMetadata": {"cveId": "CVE-2026-5975", "state": "PUBLISHED", "dateUpdated": "2026-04-09T20:10:54.661Z", "dateReserved": "2026-04-09T12:11:38.421Z", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "datePublished": "2026-04-09T19:45:18.440Z", "assignerShortName": "VulDB"}, "dataVersion": "5.2"}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability was identified in Totolink A7100RU 7.4cu.2313_b20191024. The impacted element is the function setDmzCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument wanIdx leads to os command injection. The attack may be performed from remote. The exploit is publicly available and might be used."}], "id": "CVE-2026-5975", "lastModified": "2026-04-27T19:05:57.310", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 10.0, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 10.0, "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": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "cna@vuldb.com", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.9, "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": "NONE", "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:N/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"}]}, "published": "2026-04-09T20:16:29.547", "references": [{"source": "cna@vuldb.com", "url": "https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_161/README.md"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/submit/791821"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/356529"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/356529/cti"}, {"source": "cna@vuldb.com", "url": "https://www.totolink.net/"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-77"}, {"lang": "en", "value": "CWE-78"}], "source": "cna@vuldb.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "7.4cu.2313_b20191024"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "A7100RU", "source": "cna", "vendor": "Totolink"}, "product": "a7100ru", "vendor": "totolink"}], "analysis": {"en": {"generated_at": "2026-04-09T21:50:48.353008+00:00", "value": {"mitigation_remediation": ["Upgrade the router firmware to the latest version released by Totolink.", "If a firmware update is not immediately available, restrict or disable remote access to the router\u2019s administrative interface to reduce exposure.", "Block or filter external traffic targeting the /cgi-bin/cstecgi.cgi path until the vulnerability is addressed.", "Monitor router logs for unusual command execution attempts or access to the affected CGI script."], "summary": {"action": "Immediate Patch", "impact": "Remote OS command injection"}, "threat_synthesis": {"affected_systems": "The vulnerability affects Totolink A7100RU routers running firmware 7.4cu.2313_b20191024. No other manufacturers or product variants are listed, so users of this specific router model and firmware should verify whether their device is affected.", "description_and_impact": "A remote attacker can inject operating\u2011system commands by manipulating the wanIdx parameter in the setDmzCfg function of /cgi-bin/cstecgi.cgi on a Totolink A7100RU router. This flaw is present in firmware version 7.4cu.2313_b20191024 and is characterized by CWE\u201177 and CWE\u201178 weaknesses. Successful exploitation would allow the attacker to run arbitrary OS commands on the device, potentially compromising the router\u2019s functionality.", "risk_and_exploitability": "The issue carries a CVSS score of 9.3, indicating critical severity. The description states that the attack may be performed remotely and that a publicly available exploit exists. The exact requirements for exploitation, such as authentication or user roles, are not specified in the CVE data, so the likelihood of exploitation depends on the router\u2019s external exposure. The vulnerability is not yet in the CISA KEV catalog, but its critical score and availability of exploits raise concern."}}}}, "created": "2026-04-10T08:38:42.981336+00:00", "updated": "2026-04-10T09:29:26.206283+00:00", "vendors": ["totolink", "totolink$PRODUCT$a7100ru"]}