{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-11736", "assignerOrgId": "a2826606-91e7-4eb6-899e-8484bd4575d5", "state": "PUBLISHED", "assignerShortName": "NETGEAR", "dateReserved": "2026-06-09T02:46:45.370Z", "datePublished": "2026-08-11T15:06:19.565Z", "dateUpdated": "2026-08-12T07:36:07.626Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "a2826606-91e7-4eb6-899e-8484bd4575d5", "shortName": "NETGEAR", "dateUpdated": "2026-08-12T07:36:07.626Z" }, "title": "Stack-based buffer overflow vulnerability in some NETGEAR Nighthawk routers", "datePublic": "2026-08-11T15:00:00.000Z", "problemTypes": [ { "descriptions": [ { "lang": "en", "cweId": "CWE-20", "description": "CWE-20 Improper input validation", "type": "CWE" } ] } ], "affected": [ { "vendor": "NETGEAR", "product": "RAX20", "versions": [ { "status": "affected", "version": "0", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "affected" }, { "vendor": "NETGEAR", 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true, "criteria": "cpe:2.3:a:netgear:xr1000v2:*:*:*:*:*:*:*:*", "versionStartIncluding": "0", "versionEndExcluding": "v1.1.0.22" } ] } ] } ], "descriptions": [ { "lang": "en", "value": "A stack-based buffer overflow vulnerability affects certain NETGEAR models allowing an authenticated admin user to make unauthorized modification to router software and functionality.", "supportingMedia": [ { "type": "text/html", "base64": false, "value": "

A stack-based buffer overflow vulnerability affects certain NETGEAR models allowing an authenticated admin user to make unauthorized modification to router software and functionality.

" } ] } ], "references": [ { "url": "https://www.netgear.com/support/product/rax41/", "tags": [ "product" ] }, { "url": "https://www.netgear.com/support/product/rax41v2/", "tags": [ "product", "patch" ] }, { "url": "https://www.netgear.com/support/product/rax42/", "tags": [ "product", "patch" ] }, { "url": "https://www.netgear.com/support/product/rax43v2/", "tags": [ "product", "patch" ] }, { "url": "https://www.netgear.com/support/product/rax20/", "tags": [ "product" ] }, { "url": "https://www.netgear.com/support/product/rax45/", "tags": [ "product", "patch" ] }, { "url": "https://www.netgear.com/support/product/rax42v2/", "tags": [ "product", "patch" ] }, { "url": "https://www.netgear.com/support/product/rax35v2/", "tags": [ "product", "patch" ] }, { "url": "https://www.netgear.com/support/product/rax49s/", "tags": [ "product", "patch" ] }, { "url": "https://www.netgear.com/support/product/rax50/", "tags": [ "product", "patch" ] }, { "url": "https://www.netgear.com/support/product/rax54sv2/", "tags": [ "product", "patch" ] }, { "url": "https://www.netgear.com/support/product/rax50s/", "tags": [ "product", "patch" ] }, { "url": "https://www.netgear.com/support/product/rax43/", "tags": [ "product", "patch" ] }, { "url": "https://www.netgear.com/support/product/raxe500/", "tags": [ "product", "patch" ] }, { "url": "https://www.netgear.com/support/product/xr1000/", "tags": [ "product", "patch" ] }, { "url": "https://www.netgear.com/support/product/rax50v2/", "tags": [ "product", "patch" ] }, { "url": "https://www.netgear.com/support/product/raxe450/", "tags": [ "product" ] }, { "url": "https://www.netgear.com/support/product/xr1000v2/", "tags": [ "product", "patch" ] }, { "url": "https://kb.netgear.com/000070887/August-2026-NETGEAR-Security-Advisory", "tags": [ "vendor-advisory", "patch" ] } ], "metrics": [ { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV4_0": { "attackVector": "ADJACENT", "attackComplexity": "HIGH", "attackRequirements": "NONE", "privilegesRequired": "HIGH", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "UNREPORTED", "Safety": "NOT_DEFINED", "Automatable": "NO", "Recovery": "USER", "valueDensity": "DIFFUSE", "vulnerabilityResponseEffort": "LOW", "providerUrgency": "AMBER", "version": "4.0", "baseSeverity": "LOW", "baseScore": 1.9, "vectorString": "CVSS:4.0/AV:A/AC:H/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:L/U:Amber" } } ], "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 VersionRAX20 (EoS) 4-Stream AX1800 WiFi 6 RouterEoSRAX35v2 Nighthawk AX4 4-Stream AX3000 WiFi 6 Router V1.0.16.132 https://www.netgear.com/support/product/rax35v2/ RAX41 (EoS) Nighthawk AX5 5-Stream AX3600 WiFi RouterEoSRAX41v2 Nighthawk AX5 5-Stream AX3600 WiFi Router V1.1.4.28 https://www.netgear.com/support/product/rax41v2/ RAX42 (EoS) Nighthawk AX5 5-Stream AX4200 WiFi RouterEoSRAX42v2 Nighthawk AX5 5-Stream AX4200 WiFi Router V1.1.4.28 https://www.netgear.com/support/product/rax42v2/ RAX43 Nighthawk AX5 5-Stream AX4200 WiFi Router V1.0.16.132 https://www.netgear.com/support/product/rax43/ RAX43v2 Nighthawk AX5 5-Stream AX4200 WiFi Router V1.1.4.28 https://www.netgear.com/support/product/rax43v2/ RAX45 (EoS) Nighthawk AX6 6-Stream AX4300 WiFi RouterEoSRAX49S Nighthawk AX6 6-Stream AX5300 WiFi Router V1.1.4.28 https://www.netgear.com/support/product/rax49s/ RAX50 Nighthawk AX6 6-Stream AX5400 WiFi 6 Router V1.0.16.132 https://www.netgear.com/support/product/rax50/ RAX50S (EoS) Nighthawk AX6 6-Stream AX5400 WiFi 6 RouterEoSRAX50v2 Nighthawk AX6 6-Stream AX5400 WiFi 6 Router V1.1.4.28 https://www.netgear.com/support/product/rax50v2/ RAX54Sv2 Nighthawk AX6 6-Stream AX5400 WiFi Router V1.1.4.28 https://www.netgear.com/support/product/rax54sv2/ RAX54v2 Nighthawk AX6 6-Stream AX5400 WiFi RouterV1.1.4.28RAXE450 (EoS) Nighthawk AXE10000 Tri-Band WiFi 6E RouterEoSRAXE500 Nighthawk AX12 12-Stream AXE11000 Tri-Band WiFi 6E Router V1.2.14.114 https://www.netgear.com/support/product/raxe500/ XR1000 Nighthawk WiFi 6 Pro Gaming Router V1.1.0.22 https://www.netgear.com/support/product/xr1000/ XR1000v2 Nighthawk WiFi 6 Pro Gaming Router V1.1.0.22 https://www.netgear.com/support/product/xr1000v2/ \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": "

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:

ProductFixed Version
RAX20 (EoS) 4-Stream AX1800 WiFi 6 RouterEoS
RAX35v2 Nighthawk AX4 4-Stream AX3000 WiFi 6 RouterV1.0.16.132
RAX41 (EoS) Nighthawk AX5 5-Stream AX3600 WiFi RouterEoS
RAX41v2 Nighthawk AX5 5-Stream AX3600 WiFi RouterV1.1.4.28
RAX42 (EoS) Nighthawk AX5 5-Stream AX4200 WiFi RouterEoS
RAX42v2 Nighthawk AX5 5-Stream AX4200 WiFi RouterV1.1.4.28
RAX43 Nighthawk AX5 5-Stream AX4200 WiFi RouterV1.0.16.132
RAX43v2 Nighthawk AX5 5-Stream AX4200 WiFi RouterV1.1.4.28
RAX45 (EoS) Nighthawk AX6 6-Stream AX4300 WiFi RouterEoS
RAX49S Nighthawk AX6 6-Stream AX5300 WiFi RouterV1.1.4.28
RAX50 Nighthawk AX6 6-Stream AX5400 WiFi 6 RouterV1.0.16.132
RAX50S (EoS) Nighthawk AX6 6-Stream AX5400 WiFi 6 RouterEoS
RAX50v2 Nighthawk AX6 6-Stream AX5400 WiFi 6 RouterV1.1.4.28
RAX54Sv2 Nighthawk AX6 6-Stream AX5400 WiFi RouterV1.1.4.28
RAX54v2 Nighthawk AX6 6-Stream AX5400 WiFi RouterV1.1.4.28
RAXE450 (EoS) Nighthawk AXE10000 Tri-Band WiFi 6E RouterEoS
RAXE500 Nighthawk AX12 12-Stream AXE11000 Tri-Band WiFi 6E RouterV1.2.14.114
XR1000 Nighthawk WiFi 6 Pro Gaming RouterV1.1.0.22
XR1000v2 Nighthawk WiFi 6 Pro Gaming RouterV1.1.0.22

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.

" } ] } ], "credits": [ { "lang": "en", "value": "SmallS", "type": "finder" } ], "source": { "discovery": "EXTERNAL" }, "x_generator": { "engine": "Vulnogram 1.0.3" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-08-11T17:06:56.831277Z", "id": "CVE-2026-11736", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-11T17:07:37.657Z" } } ] } }