CVE Intelligence
Medium

CVE-2026-11730 — Insufficient session randomness vulnerability in the listed NETGEAR Extender models allows a...

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.

Published Oct 13, 2026 · Updated Oct 15, 2026 · Sources: NIST National Vulnerability Database, GitHub Security Advisories, CVE Program (cve.org) e CISA ADP · CNA: NETGEAR

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.
How the score was calculated
  • EPSS 0.2% (30-day exploitation probability)+1
  • Technical severity (medium)+3

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation
Not confirmed
Not in CISA KEV — an absence of record, not proof it is unexploited.
EPSS FIRST
0.16%
ahead of 5% of scored CVEs · Oct 15, 2026
Affects
NETGEAR
EX3700 and 1 more
CVSS base
5.4
Medium · 3 source(s)

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

  1. Identify exposed assets running the affected vendor/product/version combinations (NETGEAR EX3700, NETGEAR EX6120).
  2. No fix documented in the sources: reduce exposure and monitor the vendor advisory.
  3. Search available logs for exploit probes, errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

VendorProductVersionsStatusSource
NETGEAR EX3700 < V1.0.0.102 Vulnerable CVE Program (cve.org) e CISA ADP
NETGEAR EX6120 < V1.0.1.74 Vulnerable CVE Program (cve.org) e CISA ADP

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector
Adjacent
Attack complexity
High
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
None

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

ScoreVersionSeverityExpl.ImpactScored by
2.1 CVSS 4.0 Low — — a2826606-91e7-4eb6-899e-8484bd4575d5 via NIST National Vulnerability Database
2.1 CVSS 4.0 Low — — NETGEAR via CVE Program (cve.org) e CISA ADP
5.4 CVSS 3.1 Medium 1.2 4.2 a2826606-91e7-4eb6-899e-8484bd4575d5 via NIST National Vulnerability Database
5.4 CVSS 3.1 Medium — — GitHub, Inc. via GitHub Security Advisories
5.4 CVSS 3.1 Medium — — NETGEAR via CVE Program (cve.org) e CISA ADP
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N (score shown at the top: a2826606-91e7-4eb6-899e-8484bd4575d5)

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-335

Other CVEs with this weakness →

EPSS over time FIRST

Oct 14, 2026 → Oct 15, 2026 · 2 reading(s) · max 0.16%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

  • Not enough vector or weakness data: use the affected application’s logs as a starting point.
application logs

Timeline

What happened to this CVE, newest first.

  • 2026
  • Source status changed · Received → Awaiting Analysis
    Oct 15, 2026 · NIST National Vulnerability Database
  • Affected products added · netgear/ex3700, netgear/ex6120
    Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
  • CVSS changed · 4.5 → 5.4
    Oct 13, 2026 · NIST National Vulnerability Database
  • Record published
    Oct 13, 2026
  • CVSS changed · 4.5
    Oct 13, 2026 · NIST National Vulnerability Database
  • Source status changed · → Received
    Oct 13, 2026 · NIST National Vulnerability Database
  • Record created in this database
    Oct 13, 2026 · NIST National Vulnerability Database
  • CVE published
    Oct 13, 2026 · NETGEAR

Source activity

Repeated readings are counted rather than listed.

  • 1× References added · Oct 13, 2026 – Oct 13, 2026
  • 1× Official description updated · Oct 13, 2026 – Oct 13, 2026

References

4 on the record

Elsewhere on this site

NETGEAR
every CVE for this vendor
CWE-335
other pages naming this weakness

Related CVEs (same products)

  • CVE-2026-9210 Certain NETGEAR routers allow authenticated administrators to gain unintended control of the router Jun 9, 2026
  • CVE-2026-0418 Certain NETGEAR devices allow administrators to tamper with system Jun 9, 2026

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

  • No fixed version, patch or mitigation documented.
  • No CISA SSVC assessment.
  • No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
  • No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
  • No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2026-11730 is "Insufficient session randomness vulnerability in the listed NETGEAR Extender models allows a...", rated Medium. It affects EX3700 (NETGEAR); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 5.4 describes technical severity. EPSS 0.16% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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