Vulnerability-Lookup

GHSA-4634-W7XM-GM3M

Vulnerability from github – Published: 2026-10-13 15:32 – Updated: 2026-10-13 18:30

Details

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

5.4 (Medium)


                  
                    CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N

4.5 (Medium)


                  
                    CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/V:D/RE:L/U:Amber

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{
  "affected": [],
  "aliases": [
    "CVE-2026-11730"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-335"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-13T15:17:43Z",
    "severity": "MODERATE"
  },
  "details": "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": "GHSA-4634-w7xm-gm3m",
  "modified": "2026-10-13T18:30:47Z",
  "published": "2026-10-13T15:32:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-11730"
    },
    {
      "type": "WEB",
      "url": "https://www.netgear.com/support/product/ex3700"
    },
    {
      "type": "WEB",
      "url": "https://www.netgear.com/support/product/ex6120"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/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",
      "type": "CVSS_V4"
    }
  ]
}

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

Vulnerability from cvelistv5 – Published: 2026-10-13 14:38 – Updated: 2026-10-13 16:40

Title

Insufficient session randomness vulnerability exists in certain NETGEAR EX Series Models

Summary

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

2 references

URL	Tags
https://www.netgear.com/support/product/ex3700	productpatch
https://www.netgear.com/support/product/ex6120	productpatch

Impacted products

2 products

Vendor	Product	Version
NETGEAR	EX3700	Affected: 0 , < V1.0.0.102 (custom)
NETGEAR	EX6120	Affected: 0 , < V1.0.1.74 (custom)

Date Public

2026-10-13 00:00

Credits

KDec5ae262-35b5-41c5-9bc1-91ad34145487 and Austin Turecek (Collaborator)

Show details on NVD website

JSON

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  "containers": {
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      "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": [
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          "lang": "en",
          "type": "finder",
          "value": "KDec5ae262-35b5-41c5-9bc1-91ad34145487 and Austin Turecek (Collaborator)"
        }
      ],
      "datePublic": "2026-10-13T00:00:00.000Z",
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              "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"
            }
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        {
          "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",
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            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "LOW"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
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        },
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          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "ADJACENT_NETWORK",
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            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
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            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N",
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          "scenarios": [
            {
              "lang": "en",
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      "problemTypes": [
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          "descriptions": [
            {
              "cweId": "CWE-335",
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              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-13T16:40:22.452Z",
        "orgId": "a2826606-91e7-4eb6-899e-8484bd4575d5",
        "shortName": "NETGEAR"
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      "references": [
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          "url": "https://www.netgear.com/support/product/ex3700"
        },
        {
          "tags": [
            "product",
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          "url": "https://www.netgear.com/support/product/ex6120"
        }
      ],
      "solutions": [
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          "lang": "en",
          "supportingMedia": [
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              "base64": false,
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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 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"
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    "assignerOrgId": "a2826606-91e7-4eb6-899e-8484bd4575d5",
    "assignerShortName": "NETGEAR",
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    "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"
}

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

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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