CVE-2026-11736 (GCVE-0-2026-11736)

Vulnerability from cvelistv5 – Published: 2026-08-11 15:06 – Updated: 2026-08-12 07:36
VLAI
Title
Stack-based buffer overflow vulnerability in some NETGEAR Nighthawk routers
Summary
A stack-based buffer overflow vulnerability affects certain NETGEAR models allowing an authenticated admin user to make unauthorized modification to router software and functionality.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-11 17:06 UTC
CWE
  • CWE-20 - Improper input validation
Impacted products
Vendor Product Version CPE status
NETGEAR RAX20 Affected: 0 , < * (custom)
    cpe:2.3:a:netgear:rax20:*:*:*:*:*:*:*:*
Create a notification for this product.
NETGEAR RAX35v2 Affected: 0 , < V1.0.16.132 (custom)
    cpe:2.3:a:netgear:rax35v2:*:*:*:*:*:*:*:*
Create a notification for this product.
NETGEAR RAX41 Affected: 0 , < * (custom)
    cpe:2.3:a:netgear:rax41:*:*:*:*:*:*:*:*
Create a notification for this product.
NETGEAR RAX41v2 Affected: 0 , < V1.1.4.28 (custom)
    cpe:2.3:a:netgear:rax41v2:*:*:*:*:*:*:*:*
Create a notification for this product.
NETGEAR RAX42 Affected: 0 , < * (custom)
    cpe:2.3:a:netgear:rax42:*:*:*:*:*:*:*:*
Create a notification for this product.
NETGEAR RAX42v2 Affected: 0 , < V1.1.4.28 (custom)
    cpe:2.3:a:netgear:rax42v2:*:*:*:*:*:*:*:*
Create a notification for this product.
NETGEAR RAX43 Affected: 0 , < V1.0.16.132 (custom)
    cpe:2.3:a:netgear:rax43:*:*:*:*:*:*:*:*
Create a notification for this product.
NETGEAR RAX43v2 Affected: 0 , < V1.1.4.28 (custom)
    cpe:2.3:a:netgear:rax43v2:*:*:*:*:*:*:*:*
Create a notification for this product.
NETGEAR RAX45 Affected: 0 , < * (custom)
    cpe:2.3:a:netgear:rax45:*:*:*:*:*:*:*:*
Create a notification for this product.
NETGEAR RAX49S Affected: 0 , < V1.1.4.28 (custom)
    cpe:2.3:a:netgear:rax49s:*:*:*:*:*:*:*:*
Create a notification for this product.
NETGEAR RAX50 Affected: 0 , < V1.0.16.132 (custom)
    cpe:2.3:a:netgear:rax50:*:*:*:*:*:*:*:*
Create a notification for this product.
NETGEAR RAX50S Affected: 0 , < * (custom)
    cpe:2.3:a:netgear:rax50s:*:*:*:*:*:*:*:*
Create a notification for this product.
NETGEAR RAX50v2 Affected: 0 , < V1.1.4.28 (custom)
    cpe:2.3:a:netgear:rax50v2:*:*:*:*:*:*:*:*
Create a notification for this product.
NETGEAR RAX54Sv2 Affected: 0 , < V1.1.4.28 (custom)
    cpe:2.3:a:netgear:rax54sv2:*:*:*:*:*:*:*:*
Create a notification for this product.
NETGEAR RAX54v2 Affected: 0 , < V1.1.4.28 (custom)
    cpe:2.3:a:netgear:rax54v2:*:*:*:*:*:*:*:*
Create a notification for this product.
NETGEAR RAXE450 Affected: 0 , < * (custom)
    cpe:2.3:a:netgear:raxe450:*:*:*:*:*:*:*:*
Create a notification for this product.
NETGEAR RAXE500 Affected: 0 , < V1.2.14.114 (custom)
    cpe:2.3:a:netgear:raxe500:*:*:*:*:*:*:*:*
Create a notification for this product.
NETGEAR XR1000 Affected: 0 , < V1.1.0.22 (custom)
    cpe:2.3:a:netgear:xr1000:*:*:*:*:*:*:*:*
Create a notification for this product.
NETGEAR XR1000v2 Affected: 0 , < V1.1.0.22 (custom)
    cpe:2.3:a:netgear:xr1000v2:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-08-11 15:00
Credits
Show details on NVD website

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              "value": "\u003cp\u003eDevices 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:\u003c/p\u003e\u003ctable\u003e\u003cthead\u003e\u003ctr\u003e\u003cth\u003eProduct\u003c/th\u003e\u003cth\u003eFixed Version\u003c/th\u003e\u003c/tr\u003e\u003c/thead\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e\u003cb\u003eRAX20 (EoS)\u003c/b\u003e 4-Stream AX1800 WiFi 6 Router\u003c/td\u003e\u003ctd\u003eEoS\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cb\u003eRAX35v2\u003c/b\u003e Nighthawk AX4 4-Stream AX3000 WiFi 6 Router\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.netgear.com/support/product/rax35v2/\"\u003eV1.0.16.132\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cb\u003eRAX41 (EoS)\u003c/b\u003e Nighthawk AX5 5-Stream AX3600 WiFi Router\u003c/td\u003e\u003ctd\u003eEoS\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cb\u003eRAX41v2\u003c/b\u003e Nighthawk AX5 5-Stream AX3600 WiFi Router\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.netgear.com/support/product/rax41v2/\"\u003eV1.1.4.28\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cb\u003eRAX42 (EoS)\u003c/b\u003e Nighthawk AX5 5-Stream AX4200 WiFi Router\u003c/td\u003e\u003ctd\u003eEoS\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cb\u003eRAX42v2\u003c/b\u003e Nighthawk AX5 5-Stream AX4200 WiFi Router\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.netgear.com/support/product/rax42v2/\"\u003eV1.1.4.28\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cb\u003eRAX43\u003c/b\u003e Nighthawk AX5 5-Stream AX4200 WiFi Router\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.netgear.com/support/product/rax43/\"\u003eV1.0.16.132\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cb\u003eRAX43v2\u003c/b\u003e Nighthawk AX5 5-Stream AX4200 WiFi Router\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.netgear.com/support/product/rax43v2/\"\u003eV1.1.4.28\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cb\u003eRAX45 (EoS)\u003c/b\u003e Nighthawk AX6 6-Stream AX4300 WiFi Router\u003c/td\u003e\u003ctd\u003eEoS\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cb\u003eRAX49S\u003c/b\u003e Nighthawk AX6 6-Stream AX5300 WiFi Router\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.netgear.com/support/product/rax49s/\"\u003eV1.1.4.28\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cb\u003eRAX50\u003c/b\u003e Nighthawk AX6 6-Stream AX5400 WiFi 6 Router\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.netgear.com/support/product/rax50/\"\u003eV1.0.16.132\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cb\u003eRAX50S (EoS)\u003c/b\u003e Nighthawk AX6 6-Stream AX5400 WiFi 6 Router\u003c/td\u003e\u003ctd\u003eEoS\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cb\u003eRAX50v2\u003c/b\u003e Nighthawk AX6 6-Stream AX5400 WiFi 6 Router\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.netgear.com/support/product/rax50v2/\"\u003eV1.1.4.28\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cb\u003eRAX54Sv2\u003c/b\u003e Nighthawk AX6 6-Stream AX5400 WiFi Router\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.netgear.com/support/product/rax54sv2/\"\u003eV1.1.4.28\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cb\u003eRAX54v2\u0026nbsp;\u003c/b\u003eNighthawk AX6 6-Stream AX5400 WiFi Router\u003c/td\u003e\u003ctd\u003eV1.1.4.28\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cb\u003eRAXE450 (EoS)\u003c/b\u003e Nighthawk AXE10000 Tri-Band WiFi 6E Router\u003c/td\u003e\u003ctd\u003eEoS\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cb\u003eRAXE500\u003c/b\u003e Nighthawk AX12 12-Stream AXE11000 Tri-Band WiFi 6E Router\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.netgear.com/support/product/raxe500/\"\u003eV1.2.14.114\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cb\u003eXR1000\u003c/b\u003e Nighthawk WiFi 6 Pro Gaming Router\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.netgear.com/support/product/xr1000/\"\u003eV1.1.0.22\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cb\u003eXR1000v2\u003c/b\u003e Nighthawk WiFi 6 Pro Gaming Router\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.netgear.com/support/product/xr1000v2/\"\u003eV1.1.0.22\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e\u003cp\u003eModels 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.\u003c/p\u003e"
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        }
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      "source": {
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    "dateReserved": "2026-06-09T02:46:45.370Z",
    "dateUpdated": "2026-08-12T07:36:07.626Z",
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                }
              ],
              "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\u00a0Nighthawk 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."
            }
          ],
          "source": {
            "discovery": "EXTERNAL"
          },
          "title": "Stack-based buffer overflow vulnerability in some NETGEAR Nighthawk routers",
          "x_generator": {
            "engine": "Vulnogram 1.0.3"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "a2826606-91e7-4eb6-899e-8484bd4575d5",
        "assignerShortName": "NETGEAR",
        "cveId": "CVE-2026-11736",
        "datePublished": "2026-08-11T15:06:19.565Z",
        "dateReserved": "2026-06-09T02:46:45.370Z",
        "dateUpdated": "2026-08-12T07:36:07.626Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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