{"id":"CVE-2026-11730","state":"PUBLISHED","title":"Insufficient session randomness vulnerability exists in certain NETGEAR EX Series Models","description":"Insufficient session randomness vulnerability in the listed NETGEAR Extender models allows a network-adjacent attacker having network access (such as WiFi credentials) to predict valid session identifiers and hijack an authenticated administrator session on the web management portal.","publishedAt":"2026-10-13T14:38:16.110Z","updatedAt":"2026-10-19T19:02:53.835Z","severity":{"score":2.1,"label":"Low","version":"4.0","vector":"CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/V:D/RE:L/U:Amber","source":"NETGEAR"},"assigner":"NETGEAR","products":["NETGEAR EX3700","NETGEAR EX6120"],"affected":[{"vendor":"NETGEAR","product":"EX3700","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"V1.0.0.102","versionType":"custom"}]},{"vendor":"NETGEAR","product":"EX6120","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"V1.0.1.74","versionType":"custom"}]}],"references":["https://www.netgear.com/support/product/ex3700","https://www.netgear.com/support/product/ex6120","https://kb.netgear.com/000070958/October-2026-NETGEAR-Security-Advisory"],"weaknesses":["CWE-335"],"ingestedAt":"2026-10-29T20:10:52.580Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/11xxx/CVE-2026-11730.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-11730","state":"PUBLISHED","datePublished":"2026-10-13T14:38:16.110Z","dateUpdated":"2026-10-19T19:02:53.835Z","assignerShortName":"NETGEAR","assignerOrgId":"a2826606-91e7-4eb6-899e-8484bd4575d5","dateReserved":"2026-06-09T02:46:38.130Z"},"containers":{"cna":{"title":"Insufficient session randomness vulnerability exists in certain NETGEAR EX Series Models","descriptions":[{"lang":"en","value":"Insufficient session randomness vulnerability in the listed NETGEAR Extender models allows a network-adjacent attacker having network access (such as WiFi credentials) to predict valid session identifiers and hijack an authenticated administrator session on the web management portal."}],"affected":[{"vendor":"NETGEAR","product":"EX3700","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"V1.0.0.102","versionType":"custom"}]},{"vendor":"NETGEAR","product":"EX6120","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"V1.0.1.74","versionType":"custom"}]}],"references":[{"url":"https://www.netgear.com/support/product/ex3700","tags":["product","patch"]},{"url":"https://www.netgear.com/support/product/ex6120","tags":["product","patch"]},{"url":"https://kb.netgear.com/000070958/October-2026-NETGEAR-Security-Advisory","tags":["vendor-advisory","patch"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"ADJACENT","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"UNREPORTED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"DIFFUSE","vulnerabilityResponseEffort":"LOW","providerUrgency":"AMBER","version":"4.0","baseSeverity":"LOW","baseScore":2.1,"vectorString":"CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/V:D/RE:L/U:Amber"}},{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"ADJACENT_NETWORK","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"LOW","availabilityImpact":"NONE","baseSeverity":"MEDIUM","baseScore":5.4,"vectorString":"CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-335","lang":"en","description":"CWE-335 Incorrect usage of seeds in Pseudo-Random number generator (PRNG)","type":"CWE"}]}],"providerMetadata":{"shortName":"NETGEAR","orgId":"a2826606-91e7-4eb6-899e-8484bd4575d5","dateUpdated":"2026-10-16T13:52:30.789Z"},"datePublic":"2026-10-13T00:00:00.000Z","impacts":[{"capecId":"CAPEC-593","descriptions":[{"lang":"en","value":"CAPEC-593 Session Hijacking"}]}],"solutions":[{"lang":"en","value":"Devices with automatic updates enabled may already have this patch applied. If not, please check the firmware version and update it to the latest. Fixed in:\n\nProductFixed VersionEX3700 (EoS) AC750 WiFi Range Extender Essentials Edition V1.0.0.102 https://www.netgear.com/support/product/ex3700 EX6120 AC1200 Dual Band WiFi Range Extender V1.0.1.74 https://www.netgear.com/support/product/ex6120 \n\nModels marked (EoS) have reached End-of-Support phase, and no security updates are planned. NETGEAR strongly recommends that you retire these devices and upgrade to a newer NETGEAR device for continued security support.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>Devices with automatic updates enabled may already have this patch applied. If not, please check the firmware version and update it to the latest. Fixed in:</p><table style=\"border-collapse:collapse;\"><thead><tr><th style=\"border:1px solid gray;padding:4px 8px;text-align:left;\">Product</th><th style=\"border:1px solid gray;padding:4px 8px;text-align:left;\">Fixed Version</th></tr></thead><tbody><tr><td style=\"border:1px solid gray;padding:4px 8px;text-align:left;\"><b>EX3700 (EoS)</b> AC750 WiFi Range Extender Essentials Edition</td><td style=\"border:1px solid gray;padding:4px 8px;text-align:left;\"><a href=\"https://www.netgear.com/support/product/ex3700\">V1.0.0.102</a></td></tr><tr><td style=\"border:1px solid gray;padding:4px 8px;text-align:left;\"><b>EX6120</b> AC1200 Dual Band WiFi Range Extender</td><td style=\"border:1px solid gray;padding:4px 8px;text-align:left;\"><a href=\"https://www.netgear.com/support/product/ex6120\">V1.0.1.74</a></td></tr></tbody></table><p>Models marked (EoS) have reached End-of-Support phase, and no security updates are planned. NETGEAR strongly recommends that you retire these devices and upgrade to a newer NETGEAR device for continued security support.</p>"}]}],"credits":[{"lang":"en","value":"KDec5ae262-35b5-41c5-9bc1-91ad34145487 and Austin Turecek (Collaborator)","type":"finder"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.3"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-19T19:02:40.872210Z","id":"CVE-2026-11730","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-19T19:02:53.835Z"}}]}}}