CVE-2026-11730 (GCVE-0-2026-11730)

Vulnerability from cvelistv5 – Published: 2026-10-13 14:38 – Updated: 2026-10-13 16:40
VLAI
Title
Insufficient session randomness vulnerability exists in certain NETGEAR EX Series Models
Summary
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.
Severity
2.1 (Low)
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
5.4 (Medium)
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N
CWE
  • CWE-335 - Incorrect usage of seeds in Pseudo-Random number generator (PRNG)
Assigner
NETGEAR CNA under the mitre root
CNA scorecard A 92/100 over 40 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
NETGEAR EX3700 Affected: 0 , < V1.0.0.102 (custom)
guessed Create a notification for this product.
NETGEAR EX6120 Affected: 0 , < V1.0.1.74 (custom)
guessed Create a notification for this product.
Date Public
2026-10-13 00:00
Credits
KDec5ae262-35b5-41c5-9bc1-91ad34145487 and Austin Turecek (Collaborator)
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "EX3700",
          "vendor": "NETGEAR",
          "versions": [
            {
              "lessThan": "V1.0.0.102",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "EX6120",
          "vendor": "NETGEAR",
          "versions": [
            {
              "lessThan": "V1.0.1.74",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "KDec5ae262-35b5-41c5-9bc1-91ad34145487 and Austin Turecek (Collaborator)"
        }
      ],
      "datePublic": "2026-10-13T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eInsufficient 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.\u0026nbsp;\u003c/p\u003e"
            }
          ],
          "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."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-593",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-593 Session Hijacking"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "ADJACENT",
            "baseScore": 2.1,
            "baseSeverity": "LOW",
            "exploitMaturity": "UNREPORTED",
            "privilegesRequired": "LOW",
            "providerUrgency": "AMBER",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "DIFFUSE",
            "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",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "LOW"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        },
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-335",
              "description": "CWE-335 Incorrect usage of seeds in Pseudo-Random number generator (PRNG)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-13T16:40:22.452Z",
        "orgId": "a2826606-91e7-4eb6-899e-8484bd4575d5",
        "shortName": "NETGEAR"
      },
      "references": [
        {
          "tags": [
            "product",
            "patch"
          ],
          "url": "https://www.netgear.com/support/product/ex3700"
        },
        {
          "tags": [
            "product",
            "patch"
          ],
          "url": "https://www.netgear.com/support/product/ex6120"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "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 style=\"border-collapse:collapse;\"\u003e\u003cthead\u003e\u003ctr\u003e\u003cth style=\"border:1px solid gray;padding:4px 8px;text-align:left;\"\u003eProduct\u003c/th\u003e\u003cth style=\"border:1px solid gray;padding:4px 8px;text-align:left;\"\u003eFixed Version\u003c/th\u003e\u003c/tr\u003e\u003c/thead\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd style=\"border:1px solid gray;padding:4px 8px;text-align:left;\"\u003e\u003cb\u003eEX3700 (EoS)\u003c/b\u003e AC750 WiFi Range Extender Essentials Edition\u003c/td\u003e\u003ctd style=\"border:1px solid gray;padding:4px 8px;text-align:left;\"\u003e\u003ca href=\"https://www.netgear.com/support/product/ex3700\"\u003eV1.0.0.102\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd style=\"border:1px solid gray;padding:4px 8px;text-align:left;\"\u003e\u003cb\u003eEX6120\u003c/b\u003e AC1200 Dual Band WiFi Range Extender\u003c/td\u003e\u003ctd style=\"border:1px solid gray;padding:4px 8px;text-align:left;\"\u003e\u003ca href=\"https://www.netgear.com/support/product/ex6120\"\u003eV1.0.1.74\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"
            }
          ],
          "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."
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Insufficient session randomness vulnerability exists in certain NETGEAR EX Series Models",
      "x_generator": {
        "engine": "Vulnogram 1.0.3"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a2826606-91e7-4eb6-899e-8484bd4575d5",
    "assignerShortName": "NETGEAR",
    "cveId": "CVE-2026-11730",
    "datePublished": "2026-10-13T14:38:16.110Z",
    "dateReserved": "2026-06-09T02:46:38.130Z",
    "dateUpdated": "2026-10-13T16:40:22.452Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-11730",
      "date": "2026-10-14",
      "epss": "0.0016",
      "percentile": "0.04744"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "EX3700",
                "vendor": "NETGEAR",
                "versions": [
                  {
                    "lessThan": "V1.0.0.102",
                    "status": "affected",
                    "version": "0",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "defaultStatus": "unaffected",
                "product": "EX6120",
                "vendor": "NETGEAR",
                "versions": [
                  {
                    "lessThan": "V1.0.1.74",
                    "status": "affected",
                    "version": "0",
                    "versionType": "custom"
                  }
                ]
              }
            ],
            "source": "a2826606-91e7-4eb6-899e-8484bd4575d5"
          }
        ],
        "cveTags": [],
        "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."
          }
        ],
        "id": "CVE-2026-11730",
        "lastModified": "2026-10-13T17:17:39.130",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "ADJACENT_NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 5.4,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "LOW",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 1.2,
              "impactScore": 4.2,
              "source": "a2826606-91e7-4eb6-899e-8484bd4575d5",
              "type": "Secondary"
            }
          ],
          "cvssMetricV40": [
            {
              "cvssData": {
                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "PRESENT",
                "attackVector": "ADJACENT",
                "availabilityRequirement": "NOT_DEFINED",
                "baseScore": 2.1,
                "baseSeverity": "LOW",
                "confidentialityRequirement": "NOT_DEFINED",
                "exploitMaturity": "UNREPORTED",
                "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": "LOW",
                "providerUrgency": "AMBER",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "NONE",
                "userInteraction": "NONE",
                "valueDensity": "DIFFUSE",
                "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/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:D/RE:L/U:Amber",
                "version": "4.0",
                "vulnAvailabilityImpact": "NONE",
                "vulnConfidentialityImpact": "HIGH",
                "vulnIntegrityImpact": "LOW",
                "vulnerabilityResponseEffort": "LOW"
              },
              "source": "a2826606-91e7-4eb6-899e-8484bd4575d5",
              "type": "Secondary"
            }
          ]
        },
        "published": "2026-10-13T15:17:43.340",
        "references": [
          {
            "source": "a2826606-91e7-4eb6-899e-8484bd4575d5",
            "url": "https://www.netgear.com/support/product/ex3700"
          },
          {
            "source": "a2826606-91e7-4eb6-899e-8484bd4575d5",
            "url": "https://www.netgear.com/support/product/ex6120"
          }
        ],
        "sourceIdentifier": "a2826606-91e7-4eb6-899e-8484bd4575d5",
        "vulnStatus": "Received",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-335"
              }
            ],
            "source": "a2826606-91e7-4eb6-899e-8484bd4575d5",
            "type": "Secondary"
          }
        ]
      }
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON

Loading timeline…




    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.