{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-19983", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "state": "PUBLISHED", "assignerShortName": "VulDB", "dateReserved": "2026-08-16T13:38:32.594Z", "datePublished": "2026-08-17T04:30:11.277Z", "dateUpdated": "2026-08-17T04:30:11.277Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-08-17T04:30:11.277Z"}, "title": "GL.iNet XE3000 NAS Command Service gl_nas_sys os command injection", "problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-78", "lang": "en", "description": "OS Command Injection"}]}, {"descriptions": [{"type": "CWE", "cweId": "CWE-77", "lang": "en", "description": "Command Injection"}]}], "affected": [{"vendor": "GL.iNet", "product": "A1300", "versions": [{"version": "4.8.*", "status": "affected"}, {"version": "4.9.0", "status": "unaffected"}], "cpes": ["cpe:2.3:a:gl.inet:a1300:*:*:*:*:*:*:*:*"], "modules": ["NAS Command Service"]}, {"vendor": "GL.iNet", "product": "AX1800", "versions": [{"version": "4.8.*", "status": "affected"}, {"version": "4.9.0", "status": "unaffected"}], "cpes": ["cpe:2.3:a:gl.inet:ax1800:*:*:*:*:*:*:*:*"], "modules": ["NAS Command Service"]}, {"vendor": "GL.iNet", "product": "AXT1800", "versions": [{"version": "4.8.*", "status": "affected"}, {"version": "4.9.0", "status": "unaffected"}], "cpes": ["cpe:2.3:a:gl.inet:axt1800:*:*:*:*:*:*:*:*"], "modules": ["NAS Command Service"]}, {"vendor": "GL.iNet", "product": "MT2500", "versions": [{"version": "4.8.*", "status": "affected"}, {"version": "4.9.0", "status": "unaffected"}], "cpes": ["cpe:2.3:a:gl.inet:mt2500:*:*:*:*:*:*:*:*"], "modules": ["NAS Command Service"]}, {"vendor": "GL.iNet", "product": "MT3000", "versions": [{"version": "4.8.*", "status": "affected"}, {"version": "4.9.0", "status": "unaffected"}], "cpes": ["cpe:2.3:a:gl.inet:mt3000:*:*:*:*:*:*:*:*"], "modules": ["NAS Command Service"]}, {"vendor": "GL.iNet", "product": "MT6000", "versions": [{"version": "4.8.*", "status": "affected"}, {"version": "4.9.0", "status": "unaffected"}], "cpes": ["cpe:2.3:a:gl.inet:mt6000:*:*:*:*:*:*:*:*"], "modules": ["NAS Command Service"]}, {"vendor": "GL.iNet", "product": "X3000", "versions": [{"version": "4.8.*", "status": "affected"}, {"version": "4.9.0", "status": "unaffected"}], "cpes": ["cpe:2.3:a:gl.inet:x3000:*:*:*:*:*:*:*:*"], "modules": ["NAS Command Service"]}, {"vendor": "GL.iNet", "product": "XE3000", "versions": [{"version": "4.8.*", "status": "affected"}, {"version": "4.9.0", "status": "unaffected"}], "cpes": ["cpe:2.3:a:gl.inet:xe3000:*:*:*:*:*:*:*:*"], "modules": ["NAS Command Service"]}], "descriptions": [{"lang": "en", "value": "A vulnerability was detected in GL.iNet A1300, AX1800, AXT1800, MT2500, MT3000, MT6000, X3000 and XE3000 4.8.x. 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{}

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This issue affects some unknown processing of the file /usr/bin/gl_nas_sys of the component NAS Command Service. The manipulation results in os command injection. The attack may be launched remotely. Upgrading to version 4.9.0 is capable of addressing this issue. It is suggested to upgrade the affected component. The vendor explains: \"After our investigation, we have confirmed that the vulnerability described (...) does indeed exist.\""}], "id": "CVE-2026-19983", "lastModified": "2026-08-17T05:17:09.947", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "cna@vuldb.com", "type": "Secondary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 8.3, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.7, "source": "cna@vuldb.com", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.9, "baseSeverity": "MEDIUM", "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": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "LOW", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "LOW", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/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": "LOW", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cna@vuldb.com", "type": "Secondary"}]}, "published": "2026-08-17T05:17:09.947", "references": [{"source": "cna@vuldb.com", "url": "https://github.com/gl-inet/CVE-issues/blob/main/4.0.0/NAS%20Host-header%20bypass%20to%20unauthenticated%20root%20RCE.md"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/cve/CVE-2026-19983"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/submit/873919"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/391165"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/391165/cti"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-77"}, {"lang": "en", "value": "CWE-78"}], "source": "cna@vuldb.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.8.0,4.9.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "4.9.0"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "A1300", "source": "cna", "vendor": "GL.iNet"}, "product": "a1300", "vendor": "gl-inet"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.8.0,4.9.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "4.9.0"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "AX1800", "source": "cna", "vendor": "GL.iNet"}, "product": "ax1800", "vendor": "gl-inet"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.8.0,4.9.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "4.9.0"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "AXT1800", "source": "cna", "vendor": "GL.iNet"}, "product": "axt1800", "vendor": "gl-inet"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.8.0,4.9.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "4.9.0"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "MT2500", "source": "cna", "vendor": "GL.iNet"}, "product": "mt2500", "vendor": "gl-inet"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.8.0,4.9.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "4.9.0"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "MT3000", "source": "cna", "vendor": "GL.iNet"}, "product": "mt3000", "vendor": "gl-inet"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.8.0,4.9.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "4.9.0"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "MT6000", "source": "cna", "vendor": "GL.iNet"}, "product": "mt6000", "vendor": "gl-inet"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.8.0,4.9.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "4.9.0"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "X3000", "source": "cna", "vendor": "GL.iNet"}, "product": "x3000", "vendor": "gl-inet"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.8.0,4.9.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "4.9.0"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "XE3000", "source": "cna", "vendor": "GL.iNet"}, "product": "xe3000", "vendor": "gl-inet"}], "created": "2026-08-17T06:30:04.696593+00:00", "updated": "2026-08-17T07:00:08.364079+00:00", "vendors": ["gl-inet", "gl-inet$PRODUCT$a1300", "gl-inet$PRODUCT$ax1800", "gl-inet$PRODUCT$axt1800", "gl-inet$PRODUCT$mt2500", "gl-inet$PRODUCT$mt3000", "gl-inet$PRODUCT$mt6000", "gl-inet$PRODUCT$x3000", "gl-inet$PRODUCT$xe3000"]}