{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-71916", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-08-08T16:37:44.517Z", "datePublished": "2026-08-24T17:07:47.614Z", "dateUpdated": "2026-08-24T17:07:47.614Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-08-24T17:07:47.614Z" }, "datePublic": "2026-08-24T00:00:00.000Z", "title": "DrayTek VigorSwitch Multiple Models OS Command Injection via commandTable", "descriptions": [ { "lang": "en", "value": "Multiple DrayTek VigorSwitch models contain a command injection vulnerability in the commandTable function. The vulnerability is caused by incomplete filtering of dangerous characters such as backticks, newline characters, and single quotes in the parameter field. A remote attacker can trigger this vulnerability via crafted input to execute arbitrary commands with root privileges. Exploitation requires valid administrative credentials for the device's web management interface." } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "cweId": "CWE-78", "description": "Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')", "type": "CWE" } ] } ], "affected": [ { "vendor": "DrayTek Corporation", "product": "VigorSwitch G2540xs", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThan": "3.9.10", "status": "affected", "versionType": "custom" } ] }, { "vendor": "DrayTek Corporation", "product": "VigorSwitch P2540xs", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThan": "3.9.10", "status": "affected", "versionType": "custom" } ] }, { "vendor": "DrayTek Corporation", "product": "VigorSwitch FX2120", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThan": "3.9.10", "status": "affected", "versionType": "custom" } ] }, { "vendor": "DrayTek Corporation", "product": "VigorSwitch G2282x", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThan": "2.10.6", "status": "affected", "versionType": "custom" } ] }, { "vendor": "DrayTek Corporation", "product": "VigorSwitch P2282x", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThan": "2.10.6", "status": "affected", "versionType": "custom" } ] }, { "vendor": "DrayTek Corporation", "product": "VigorSwitch Q2300x", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThan": "2.10.7", "status": "affected", "versionType": "custom" } ] }, { "vendor": "DrayTek Corporation", "product": "VigorSwitch PQ2300xb", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThan": "2.10.7", "status": "affected", "versionType": "custom" } ] }, { "vendor": "DrayTek Corporation", "product": "VigorSwitch G2542x", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThan": "3.10.6", "status": "affected", "versionType": "custom" } ] }, { "vendor": "DrayTek Corporation", "product": "VigorSwitch P2542x", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThan": "3.10.6", "status": "affected", "versionType": "custom" } ] }, { "vendor": "DrayTek Corporation", "product": "VigorSwitch P2542xh", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThan": "3.10.6", "status": "affected", "versionType": "custom" } ] }, { "vendor": "DrayTek Corporation", "product": "VigorSwitch PX2060", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThan": "2.9.10", "status": "affected", "versionType": "custom" } ] }, { "vendor": "DrayTek Corporation", "product": "VigorSwitch G1280", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThan": "2.9.10", "status": "affected", "versionType": "custom" } ] }, { "vendor": "DrayTek Corporation", "product": "VigorSwitch P1280", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThan": "2.9.10", "status": "affected", "versionType": "custom" } ] }, { "vendor": "DrayTek Corporation", "product": "VigorSwitch P1281x", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThan": "2.9.10", "status": "affected", "versionType": "custom" } ] }, { "vendor": "DrayTek Corporation", "product": "VigorSwitch G1282", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThan": "2.9.10", "status": "affected", "versionType": "custom" } ] }, { "vendor": "DrayTek Corporation", "product": "VigorSwitch P1282", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThan": "2.9.10", "status": "affected", "versionType": "custom" } ] }, { "vendor": "DrayTek Corporation", "product": "VigorSwitch G2121", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThan": "2.9.10", "status": "affected", "versionType": "custom" } ] }, { "vendor": "DrayTek Corporation", "product": "VigorSwitch P2121", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThan": "2.9.10", "status": "affected", "versionType": "custom" } ] }, { "vendor": "DrayTek Corporation", "product": "VigorSwitch PQ2121x", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThan": "2.9.10", "status": "affected", "versionType": "custom" } ] }, { "vendor": "DrayTek Corporation", "product": "VigorSwitch Q2121x", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThan": "2.9.10", "status": "affected", "versionType": "custom" } ] }, { "vendor": "DrayTek Corporation", "product": "VigorSwitch G2280x", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThan": "2.9.10", "status": "affected", "versionType": "custom" } ] }, { "vendor": "DrayTek Corporation", "product": "VigorSwitch P2280x", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThan": "2.9.10", "status": "affected", "versionType": "custom" } ] }, { "vendor": "DrayTek Corporation", "product": "VigorSwitch Q2200x", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThan": "2.9.10", "status": "affected", "versionType": "custom" } ] }, { "vendor": "DrayTek Corporation", "product": "VigorSwitch PQ2200xb", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThan": "2.9.10", "status": "affected", "versionType": "custom" } ] }, { "vendor": "DrayTek Corporation", "product": "VigorSwitch G2100", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThan": "2.9.10", "status": "affected", "versionType": "custom" } ] }, { "vendor": "DrayTek Corporation", "product": "VigorSwitch P2100", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThan": "2.9.10", "status": "affected", "versionType": "custom" } ] }, { "vendor": "DrayTek Corporation", "product": "VigorSwitch G2540x", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThan": "2.9.10", "status": "affected", "versionType": "custom" } ] }, { "vendor": "DrayTek Corporation", "product": "VigorSwitch P2540x", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThan": "2.9.10", "status": "affected", "versionType": "custom" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:draytek:vigorswitch_g2540xs_firmware:*:*:*:*:*:*:*:*", "versionEndExcluding": "3.9.10" }, { "vulnerable": true, "criteria": "cpe:2.3:o:draytek:vigorswitch_p2540xs_firmware:*:*:*:*:*:*:*:*", "versionEndExcluding": "3.9.10" }, { "vulnerable": true, "criteria": "cpe:2.3:o:draytek:vigorswitch_fx2120_firmware:*:*:*:*:*:*:*:*", "versionEndExcluding": "3.9.10" }, { "vulnerable": true, "criteria": "cpe:2.3:o:draytek:vigorswitch_g1282_firmware:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.9.10" }, { "vulnerable": true, "criteria": "cpe:2.3:o:draytek:vigorswitch_p1282_firmware:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.9.10" }, { "vulnerable": true, "criteria": "cpe:2.3:o:draytek:vigorswitch_g2121_firmware:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.9.10" }, { 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"cpe:2.3:o:draytek:vigorswitch_p2100_firmware:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.9.10" } ] } ] } ], "metrics": [ { "format": "CVSS", "cvssV4_0": { "version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "baseScore": 8.6, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "HIGH", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE" } }, { "format": "CVSS", "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.2, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH" } } ], "references": [ { "url": "https://www.draytek.com/about/security-advisory/multiple-vulnerabilities-in-vigorswitch-series-august-2026/", "tags": [ "vendor-advisory" ] }, { "name": "VulnCheck Advisory: DrayTek VigorSwitch Multiple Models OS Command Injection via commandTable", "tags": [ "third-party-advisory" ], "url": "https://www.vulncheck.com/advisories/draytek-vigorswitch-multiple-models-os-command-injection-via-commandtable" } ], "credits": [ { "lang": "en", "value": "Jincheng Wang (@winmt)", "type": "finder" }, { "lang": "en", "value": "Le Yu (Nanjing University of Posts and Telecommunications)", "type": "finder" }, { "lang": "en", "value": "Xiapu Luo (The Hong Kong Polytechnic University)", "type": "finder" } ], "x_generator": { "engine": "vulncheck-endgame" } } } }