{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "descriptions": [{"lang": "en", "value": "Command Injection in Tenda G0 routers with firmware versions v15.11.0.6(9039)_CN and v15.11.0.5(5876)_CN , and Tenda G1 and G3 routers with firmware versions v15.11.0.17(9502)_CN or v15.11.0.16(9024)_CN allows remote attackers to execute arbitrary OS commands via a crafted action/setDebugCfg request. This occurs because the \"formSetDebugCfg\" function executes glibc's system function with untrusted input."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-04-15T23:14:46.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://hackmd.io/%40aZYpdinUS2SD-yhAeHwOkw/rkhTCGzMd"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2021-27691", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Command Injection in Tenda G0 routers with firmware versions v15.11.0.6(9039)_CN and v15.11.0.5(5876)_CN , and Tenda G1 and G3 routers with firmware versions v15.11.0.17(9502)_CN or v15.11.0.16(9024)_CN allows remote attackers to execute arbitrary OS commands via a crafted action/setDebugCfg request. This occurs because the \"formSetDebugCfg\" function executes glibc's system function with untrusted input."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://hackmd.io/@aZYpdinUS2SD-yhAeHwOkw/rkhTCGzMd", "refsource": "MISC", "url": "https://hackmd.io/@aZYpdinUS2SD-yhAeHwOkw/rkhTCGzMd"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T21:26:10.746Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://hackmd.io/%40aZYpdinUS2SD-yhAeHwOkw/rkhTCGzMd"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2021-27691", "datePublished": "2021-04-15T23:14:46.000Z", "dateReserved": "2021-02-25T00:00:00.000Z", "dateUpdated": "2024-08-03T21:26:10.746Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1", "vulnerability-lookup:meta": {"epss": {"cve": "CVE-2021-27691", "date": "2026-09-11", "epss": "0.25183", "percentile": "0.97804"}, "nvd": "{\"cve\":{\"id\":\"CVE-2021-27691\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2021-04-16T00:15:12.007\",\"lastModified\":\"2024-11-21T05:58:25.883\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Command Injection in Tenda G0 routers with firmware versions v15.11.0.6(9039)_CN and v15.11.0.5(5876)_CN , and Tenda G1 and G3 routers with firmware versions v15.11.0.17(9502)_CN or v15.11.0.16(9024)_CN allows remote attackers to execute arbitrary OS commands via a crafted action/setDebugCfg request. This occurs because the \\\"formSetDebugCfg\\\" function executes glibc's system function with untrusted input.\"},{\"lang\":\"es\",\"value\":\"Una Inyecci\u00f3n de Comandos en routers Tenda G0 con versiones de firmware v15.11.0.6 (9039) _CN y v15.11.0.5(5876) _CN, y routers Tenda G1 y G3 con versiones de firmware v15.11.0.17(9502) _CN o v15. 11.0.16(9024) _CN, permite a atacantes remotos ejecutar comandos arbitrarios del sistema operativo a trav\u00e9s de una petici\u00f3n action/setDebugCfg dese\u00f1ada. Esto ocurre porque la funci\u00f3n \\\"formSetDebugCfg\\\" ejecuta la funci\u00f3n del sistema de glibc con una entrada que no es de confianza\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:C/I:C/A:C\",\"baseScore\":10.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"COMPLETE\",\"integrityImpact\":\"COMPLETE\",\"availabilityImpact\":\"COMPLETE\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":10.0,\"impactScore\":10.0,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-78\"},{\"lang\":\"en\",\"value\":\"CWE-119\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:tendacn:g0_firmware:15.11.0.5\\\\(5876\\\\)_cn:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"793EB1BA-9500-4F92-8B2F-05A3E7BF6B28\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:tendacn:g0_firmware:15.11.0.6\\\\(9039\\\\)_cn:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D9B3924A-DD50-4F7B-9FF6-3A89EDD7CF91\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:tendacn:g0:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D2DC4400-8890-4F5A-AAD3-577626BD4DAE\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:tendacn:g1_firmware:15.11.0.16\\\\(9024\\\\)_cn:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"10886B9B-E33E-4748-93BB-3617EF40BF3D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:tendacn:g1_firmware:15.11.0.17\\\\(9502\\\\)_cn:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F1F4A805-B82C-4815-9999-E2D971E082E8\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:tendacn:g1:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"6839E6D3-4F3E-40FB-828E-D25088E85A21\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:tendacn:g3_firmware:15.11.0.16\\\\(9024\\\\)_cn:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"91B52B9F-BBF3-4BDD-8CF1-C253959E4182\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:tendacn:g3_firmware:15.11.0.17\\\\(9502\\\\)_cn:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"67707336-51C8-428B-B4E2-084302C5806D\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:tendacn:g3:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"0A5CDD3E-C5D2-44DF-B330-065CF8ECC29B\"}]}]}],\"references\":[{\"url\":\"https://hackmd.io/%40aZYpdinUS2SD-yhAeHwOkw/rkhTCGzMd\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://hackmd.io/%40aZYpdinUS2SD-yhAeHwOkw/rkhTCGzMd\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}", "redhat_vex": {"current_release_date": "2026-03-27T14:24:03+00:00", "cve": "CVE-2021-27691", "id": "CVE-2021-27691", "initial_release_date": "2021-01-01T00:00:00+00:00", "product_status:known_not_affected": "1", "source": "Red Hat CSAF VEX", "status": "final", "title": "CVE-2021-27691", "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-27691.json", "version": "3"}}}