What is CVE-2026-11738?

CVE-2026-11738 is a medium-severity vulnerability in NETGEAR Be9300 Firmware, classified under Improper Input Validation. CVSS score: 4.4/10. Published 2026-08-11.

How severe is CVE-2026-11738?

Medium severity. CVSS v3 base score is 4.4 out of 10.

Improper input validation in NETGEAR Be9300 Firmware

CVE-2026-11738

Insufficient input validation vulnerability in the listed NETGEAR models allows authenticated administrators connected to the local network to make unauthorized modification to router software and functionality.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2026-08-11 · last modified 2026-09-09.

CVSS v3 metric

CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.003 (17.0th percentile), scored 2026-09-26.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 17th percentile — 17.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

Affected products

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

a2826606-91e7-4eb6-899e-8484bd4575d5 (Product, product, patch)
a2826606-91e7-4eb6-899e-8484bd4575d5 (Product, product, patch)
a2826606-91e7-4eb6-899e-8484bd4575d5 (Product, product, patch)
a2826606-91e7-4eb6-899e-8484bd4575d5 (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-11738?: CVE-2026-11738 is a medium-severity vulnerability in NETGEAR Be9300 Firmware, classified under Improper Input Validation. CVSS score: 4.4/10. Published 2026-08-11.
How severe is CVE-2026-11738?: Medium severity. CVSS v3 base score is 4.4 out of 10.