{"id":"CVE-2026-25857","state":"PUBLISHED","title":"Tenda G300-F Command Injection via formSetWanDiag","description":"Tenda G300-F router firmware version 16.01.14.2 and prior contain an OS command injection vulnerability in the WAN diagnostic functionality (formSetWanDiag). The implementation constructs a shell command that invokes curl and incorporates attacker-controlled input into the command line without adequate neutralization. As a result, a remote attacker with access to the affected management interface can inject additional shell syntax and execute arbitrary commands on the device with the privileges of the management process.","publishedAt":"2026-02-07T21:41:41.340Z","updatedAt":"2026-05-11T23:11:16.434Z","severity":{"score":8.6,"label":"High","version":"4.0","vector":"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","source":"VulnCheck"},"assigner":"VulnCheck","products":["Shenzhen Tenda Technology Tenda G300-F"],"affected":[{"vendor":"Shenzhen Tenda Technology","product":"Tenda G300-F","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"16.01.14.2","versionType":"custom"}]}],"references":["https://blog.evan.lat/blog/cve-2026-25857/","https://www.tendacn.com/material/show/736333682028613","https://www.vulncheck.com/advisories/tenda-g300-f-command-injection-via-formsetwandiag"],"weaknesses":["CWE-78"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/25xxx/CVE-2026-25857.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-25857","state":"PUBLISHED","datePublished":"2026-02-07T21:41:41.340Z","dateUpdated":"2026-05-11T23:11:16.434Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-02-06T19:12:03.462Z"},"containers":{"cna":{"title":"Tenda G300-F Command Injection via formSetWanDiag","descriptions":[{"lang":"en","value":"Tenda G300-F router firmware version 16.01.14.2 and prior contain an OS command injection vulnerability in the WAN diagnostic functionality (formSetWanDiag). The implementation constructs a shell command that invokes curl and incorporates attacker-controlled input into the command line without adequate neutralization. As a result, a remote attacker with access to the affected management interface can inject additional shell syntax and execute arbitrary commands on the device with the privileges of the management process."}],"affected":[{"vendor":"Shenzhen Tenda Technology","product":"Tenda G300-F","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"16.01.14.2","versionType":"custom"}]}],"references":[{"url":"https://blog.evan.lat/blog/cve-2026-25857/","tags":["technical-description","exploit"]},{"url":"https://www.tendacn.com/material/show/736333682028613","tags":["product"]},{"url":"https://www.vulncheck.com/advisories/tenda-g300-f-command-injection-via-formsetwandiag","tags":["third-party-advisory"]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.6,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"HIGH","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:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-78","description":"CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-05-11T23:11:16.434Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:tenda:rx9_pro_firmware:*:*:*:*:*:*:*:*","versionEndIncluding":"16.01.14.2"}]}]}],"credits":[{"lang":"en","type":"finder","value":"evan"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.5.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-02-10T16:13:59.771975Z","id":"CVE-2026-25857","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-02-10T16:14:11.633Z"}}]}}}