{"id":"CVE-2026-15757","state":"PUBLISHED","title":"Insufficient input validation vulnerability in NETGEAR DGND3700v1 modem router","description":"A security flaw was discovered in the NETGEAR DGND3700v1 that could\nallow someone on the same local WiFi network to send unauthorized commands to\nthe device.\n\n\n\nThis issue was identified through testing in a controlled research\nenvironment using a simulated version of the router's software and has not been\nconfirmed on physical production devices.","publishedAt":"2026-07-14T17:46:15.979Z","updatedAt":"2026-07-15T16:50:16.246Z","severity":{"score":6.3,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/V:D/RE:L/U:Amber","source":"NETGEAR"},"assigner":"NETGEAR","products":["NETGEAR DGND3700v1"],"affected":[{"vendor":"NETGEAR","product":"DGND3700v1","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"V1.0.0.17","versionType":"custom"}]}],"references":["https://www.netgear.com/support/product/dgnd3700v1","https://kb.netgear.com/000070859/July-2026-NETGEAR-Security-Advisory"],"weaknesses":["CWE-20"],"ingestedAt":"2026-10-29T20:11:00.674Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/15xxx/CVE-2026-15757.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-15757","state":"PUBLISHED","datePublished":"2026-07-14T17:46:15.979Z","dateUpdated":"2026-07-15T16:50:16.246Z","assignerShortName":"NETGEAR","assignerOrgId":"a2826606-91e7-4eb6-899e-8484bd4575d5","dateReserved":"2026-07-14T16:28:54.296Z"},"containers":{"cna":{"title":"Insufficient input validation vulnerability in NETGEAR DGND3700v1 modem router","descriptions":[{"lang":"en","value":"A security flaw was discovered in the NETGEAR DGND3700v1 that could\nallow someone on the same local WiFi network to send unauthorized commands to\nthe device.\n\n\n\nThis issue was identified through testing in a controlled research\nenvironment using a simulated version of the router's software and has not been\nconfirmed on physical production devices."}],"affected":[{"vendor":"NETGEAR","product":"DGND3700v1","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"V1.0.0.17","versionType":"custom"}]}],"references":[{"url":"https://www.netgear.com/support/product/dgnd3700v1","tags":["patch","product"]},{"url":"https://kb.netgear.com/000070859/July-2026-NETGEAR-Security-Advisory","tags":["vendor-advisory"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"ADJACENT","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"NONE","exploitMaturity":"UNREPORTED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"DIFFUSE","vulnerabilityResponseEffort":"LOW","providerUrgency":"AMBER","version":"4.0","baseSeverity":"MEDIUM","baseScore":6.3,"vectorString":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/V:D/RE:L/U:Amber"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-20","lang":"en","description":"CWE-20 Improper input validation","type":"CWE"}]}],"providerMetadata":{"shortName":"NETGEAR","orgId":"a2826606-91e7-4eb6-899e-8484bd4575d5","dateUpdated":"2026-07-15T16:50:16.246Z"},"datePublic":"2026-07-14T00:00:00.000Z","impacts":[{"capecId":"CAPEC-248","descriptions":[{"lang":"en","value":"CAPEC-248 Command Injection"}]},{"capecId":"CAPEC-100","descriptions":[{"lang":"en","value":"CAPEC-100 Overflow Buffers"}]}],"tags":["unsupported-when-assigned"],"solutions":[{"lang":"en","value":"NETGEAR DGND3700v1 has reached End-of-Support phase, and no further security\n updates are planned. NETGEAR strongly recommends replacing these \ndevices with newer NETGEAR models to ensure continued security support \nand updates.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>NETGEAR&nbsp;DGND3700v1&nbsp;has reached End-of-Support phase, and no further security\n updates are planned. NETGEAR&nbsp;strongly recommends replacing these \ndevices with newer NETGEAR models to ensure continued security support \nand updates.</p>"}]}],"credits":[{"lang":"en","value":"Security Research Center (SRC) @ Concordia University","type":"finder"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.3"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-15T14:02:42.091535Z","id":"CVE-2026-15757","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-15T14:02:51.002Z"}}]}}}