CVE-2026-71916 (GCVE-0-2026-71916)
Vulnerability from cvelistv5
Published
2026-08-24 17:07
Modified
2026-08-27 13:49
Severity ?
8.6 (High) - 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
7.2 (High) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
7.2 (High) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
VLAI Severity ?
EPSS score ?
CWE
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Summary
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.
References
Impacted products
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\"2.9.10\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"DrayTek Corporation\", \"product\": \"VigorSwitch Q2200x\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"2.9.10\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"DrayTek Corporation\", \"product\": \"VigorSwitch PQ2200xb\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"2.9.10\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"DrayTek Corporation\", \"product\": \"VigorSwitch G2100\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"2.9.10\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"DrayTek Corporation\", \"product\": \"VigorSwitch P2100\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"2.9.10\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"DrayTek Corporation\", \"product\": \"VigorSwitch G2540x\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"2.9.10\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"DrayTek Corporation\", \"product\": \"VigorSwitch P2540x\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"2.9.10\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unaffected\"}], \"datePublic\": \"2026-08-24T00:00:00.000Z\", \"references\": [{\"url\": \"https://www.draytek.com/about/security-advisory/multiple-vulnerabilities-in-vigorswitch-series-august-2026/\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://www.vulncheck.com/advisories/draytek-vigorswitch-multiple-models-os-command-injection-via-commandtable\", \"name\": \"VulnCheck Advisory: DrayTek VigorSwitch Multiple Models OS Command Injection via commandTable\", \"tags\": [\"third-party-advisory\"]}], \"x_generator\": {\"engine\": \"vulncheck-endgame\"}, \"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\u0027s web management interface.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-78\", \"description\": \"Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)\"}]}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:draytek:vigorswitch_g2540xs_firmware:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"3.9.10\"}, {\"criteria\": \"cpe:2.3:o:draytek:vigorswitch_p2540xs_firmware:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"3.9.10\"}, {\"criteria\": \"cpe:2.3:o:draytek:vigorswitch_fx2120_firmware:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"3.9.10\"}, {\"criteria\": \"cpe:2.3:o:draytek:vigorswitch_g1282_firmware:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"2.9.10\"}, {\"criteria\": \"cpe:2.3:o:draytek:vigorswitch_p1282_firmware:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"2.9.10\"}, {\"criteria\": \"cpe:2.3:o:draytek:vigorswitch_g2121_firmware:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"2.9.10\"}, {\"criteria\": \"cpe:2.3:o:draytek:vigorswitch_pq2121x_firmware:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"2.9.10\"}, {\"criteria\": \"cpe:2.3:o:draytek:vigorswitch_q2121x_firmware:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"2.9.10\"}, {\"criteria\": \"cpe:2.3:o:draytek:vigorswitch_g2280x_firmware:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"2.9.10\"}, {\"criteria\": \"cpe:2.3:o:draytek:vigorswitch_p2280x_firmware:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"2.9.10\"}, {\"criteria\": \"cpe:2.3:o:draytek:vigorswitch_q2200x_firmware:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"2.9.10\"}, {\"criteria\": \"cpe:2.3:o:draytek:vigorswitch_pq2200xb_firmware:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"2.9.10\"}, {\"criteria\": \"cpe:2.3:o:draytek:vigorswitch_g2100_firmware:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"2.9.10\"}, {\"criteria\": \"cpe:2.3:o:draytek:vigorswitch_p2100_firmware:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"2.9.10\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"83251b91-4cc7-4094-a5c7-464a1b83ea10\", \"shortName\": \"VulnCheck\", \"dateUpdated\": \"2026-08-24T17:07:47.614Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-71916\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-27T13:49:12.955Z\", \"dateReserved\": \"2026-08-08T16:37:44.517Z\", \"assignerOrgId\": \"83251b91-4cc7-4094-a5c7-464a1b83ea10\", \"datePublished\": \"2026-08-24T17:07:47.614Z\", \"assignerShortName\": \"VulnCheck\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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