CVE-2026-25857

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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."}, {"lang": "es", "value": "El firmware del router Tenda G300-F, versi\u00f3n 16.01.14.2 y anteriores, contiene una vulnerabilidad de inyecci\u00f3n de comandos del sistema operativo en la funcionalidad de diagn\u00f3stico WAN (formSetWanDiag). La implementaci\u00f3n construye un comando de shell que invoca curl e incorpora entrada controlada por el atacante en la l\u00ednea de comandos sin una neutralizaci\u00f3n adecuada. Como resultado, un atacante remoto con acceso a la interfaz de gesti\u00f3n afectada puede inyectar sintaxis de shell adicional y ejecutar comandos arbitrarios en el dispositivo con los privilegios del proceso de gesti\u00f3n."}], "id": "CVE-2026-25857", "lastModified": "2026-06-17T10:25:20.147", "metrics": {"cvssMetricV31": [{"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": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.6, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "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": "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/E:X/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": "disclosure@vulncheck.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-25857", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-02-10T16:13:59.771975Z", "version": "2.0.3"}}]}, "published": "2026-02-07T22:16:02.607", "references": [{"source": "disclosure@vulncheck.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://blog.evan.lat/blog/cve-2026-25857/"}, {"source": "disclosure@vulncheck.com", "tags": ["Product"], "url": "https://www.tendacn.com/material/show/736333682028613"}, {"source": "disclosure@vulncheck.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://www.vulncheck.com/advisories/tenda-g300-f-command-injection-via-formsetwandiag"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-78"}], "source": "disclosure@vulncheck.com", "type": "Secondary"}]}

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{"created": "2026-02-09T10:44:19.687287+00:00", "updated": "2026-06-18T11:15:03.270086+00:00", "vendors": ["tenda", "tenda$PRODUCT$g300-f"]}