Insufficient session randomness vulnerability exists in certain NETGEAR EX Series Models
Summary
| CVE | CVE-2026-11730 |
|---|---|
| State | PUBLISHED |
| Assigner | NETGEAR |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-10-13 15:17:43 UTC |
| Updated | 2026-10-15 20:38:04 UTC |
| 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. |
Risk And Classification
Primary CVSS: v4.0 2.1 LOW from a2826606-91e7-4eb6-899e-8484bd4575d5
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
EPSS: 0.001600000 probability, percentile 0.047540000 (date 2026-10-15)
Problem Types: CWE-335 | CWE-335 CWE-335 Incorrect usage of seeds in Pseudo-Random number generator (PRNG)
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | a2826606-91e7-4eb6-899e-8484bd4575d5 | Secondary | 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/C... |
| 4.0 | CNA | CVSS | 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... |
| 3.1 | a2826606-91e7-4eb6-899e-8484bd4575d5 | Secondary | 5.4 | MEDIUM | CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N |
| 3.1 | CNA | CVSS | 5.4 | MEDIUM | CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N |
CVSS v4.0 Breakdown
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
CVSS v3.1 Breakdown
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.netgear.com/support/product/ex3700 | a2826606-91e7-4eb6-899e-8484bd4575d5 | www.netgear.com | |
| www.netgear.com/support/product/ex6120 | a2826606-91e7-4eb6-899e-8484bd4575d5 | www.netgear.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: KDec5ae262-35b5-41c5-9bc1-91ad34145487 and Austin Turecek (Collaborator) (en)
Additional Advisory Data
Solutions
CNA: 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 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 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.