EX5000: Improper Authentication
CVE-2026-0407 is a high-severity improper authentication vulnerability in EX5000 from NETGEAR, with a CVSS 3.1 base score of 8.0 out of 10. It can be exploited from the same local network by an attacker with a low-privileged account, without any action from a user. The record lists version v1.0.1.82 as the first without the flaw, so updating EX5000 to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.25% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update EX5000 to v1.0.1.82 or a later version.
- Update EX3110 to v1.0.1.82 or a later version.
- Update EX6110 to v1.0.1.82 or a later version.
- Read the advisory on kb.netgear.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| NETGEAR | EX5000 | before v1.0.1.82 | v1.0.1.82 |
| NETGEAR | EX3110 | before v1.0.1.82 | v1.0.1.82 |
| NETGEAR | EX6110 | before v1.0.1.82 | v1.0.1.82 |
| NETGEAR | EX2800 | before v1.0.1.82 | v1.0.1.82 |
| NETGEAR | Ex5000 Firmware | before 1.0.1.82 | 1.0.1.82 |
| NETGEAR | Ex3110 Firmware | before 1.0.1.82 | 1.0.1.82 |
| NETGEAR | Ex6110 Firmware | before 1.0.1.82 | 1.0.1.82 |
| NETGEAR | Ex2800 Firmware | before 1.0.1.82 | 1.0.1.82 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- AdjacentThe attacker must be on the same local network segment.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 6.1 | Medium | CNA |
| CVSS 3.1 | 8.0 | High | NVD |
Official description
An insufficient authentication vulnerability in NETGEAR WiFi range extenders allows a network adjacent attacker with WiFi authentication or a physical Ethernet port connection to bypass the authentication process and access the admin panel.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Authentication
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
How developers prevent this class of flaw
- Use an authentication framework or library such as the OWASP ESAPI Authentication feature.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Patches and release notes
Other references
Other vulnerabilities in EX5000
- 8.0 High severity
Recent Improper Authentication vulnerabilities
- 7.5 High severity
- 7.8 High severity
- 7.5 High severity
- 8.1 High severity
- 9.4 Critical severity
- 9.8 Critical severity
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