# What is CVE-2012-4366?

> CVE-2012-4366 is a low-severity flaw (CVSS 3.3) in N150 Wireless Router from Belkin, published on 20 November 2012. It is not on the list of flaws known to be exploited today. The latest forecast puts its chance of use in the next 30 days at 4.6%. If you run an affected version, plan in the vendor’s fix.

Canonical page: https://www.edgeprotect.io/what-is/cve-2012-4366

## At a glance

- **Verdict:** Plan it in. No sign of exploitation and a low forecast. Patch it in your normal update cycle.
- **EdgeProtect risk score:** 18 out of 100 (Info); action: Track. Kept up to date as the evidence changes.
- **Severity:** Low (CVSS 3.3 out of 10)
- **Known to be exploited:** No, not on the list of flaws known to be exploited today
- **Chance of use in the next 30 days:** 4.6% (latest exploit-likelihood forecast)
- **Published:** 20 November 2012
- **Record last updated:** 16 June 2026
- **Main product:** N150 Wireless Router from Belkin
- **Affected products:** 4

## What is CVE-2012-4366? In plain terms

An attacker has to be on the same local network without logging in. If it works, the attacker can read some data.

### The official description

Belkin wireless routers Surf N150 Model F7D1301v1, N900 Model F9K1104v1, N450 Model F9K1105V2, and N300 Model F7D2301v1 generate a predictable default WPA2-PSK passphrase based on eight digits of the WAN MAC address, which allows remote attackers to access the network by sniffing the beacon frames.

### What kind of flaw is it?

- Unknown: Unknown

### How an attack on it works

- Where an attacker can be: On the same local network
- How hard it is to pull off: Easy: no special conditions
- Login needed first: No login needed
- What an attacker gets: Can read some data

Severity vector: `AV:A/AC:L/Au:N/C:P/I:N/A:N`

## Is CVE-2012-4366 being exploited? Not that we know of

It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 4.6%. That can change at any time, which is why we keep watching.

Exploit likelihood over the last 7 days: 4.6%, 4.6%, 4.6%, 4.6%, 4.6%, 4.6%, 4.6%.

### Timeline

- 20 November 2012: Published
- 16 June 2026: Record last updated

### How EdgeProtect ranks it

CVE-2012-4366 scores **18 out of 100 (Info)**, with the action "Track".

Every published flaw gets a risk score from 0 to 100, kept up to date as the evidence changes. Four things go into the score, from the one that counts most to the ones that count less:

- Evidence it is being exploited: biggest factor
- How severe it is: strong factor
- How widely exposed it is: key context
- Real threat activity around it: key context

85 and above is Critical. Anything confirmed as exploited is always marked for an emergency patch, whatever its score. When this flaw matches software you track, it lands in your list with its score and the reasons behind it.

## Who is affected by CVE-2012-4366?

The published record lists 4 products.

- [N150 Wireless Router](https://www.edgeprotect.io/product/belkin/n150_wireless_router) by [Belkin](https://www.edgeprotect.io/vendors/belkin) (Hardware): f7d1301v1
- [N300 Wireless Router](https://www.edgeprotect.io/product/belkin/n300_wireless_router) by [Belkin](https://www.edgeprotect.io/vendors/belkin) (Hardware): f7d2301v1
- [N450 Wireless Router](https://www.edgeprotect.io/product/belkin/n450_wireless_router) by [Belkin](https://www.edgeprotect.io/vendors/belkin) (Hardware): f9k1105v2
- [N900 Wireless Router](https://www.edgeprotect.io/product/belkin/n900_wireless_router) by [Belkin](https://www.edgeprotect.io/vendors/belkin) (Hardware): f9k1104v1

## How do I fix CVE-2012-4366?

1. **Check whether you run it.** Compare your versions with the affected products above. Not sure what you run? EdgeProtect can work it out from your public website, or you can pick it from a list.
2. **Apply the vendor’s fix.** Install the latest update from the vendor. The references list where the vendor has published details.
3. **If you can’t patch today.** Follow any mitigation the vendor publishes, and limit who can reach the affected system from the internet until the update is in.
4. **Keep an eye on it.** Track the product and we tell you as soon as we spot this flaw on the list of exploited flaws, or a jump in its exploit likelihood.

### References

- [archives.neohapsis.com](http://archives.neohapsis.com/archives/bugtraq/2012-11/0070.html)
- [jakoblell.com](http://www.jakoblell.com/blog/2012/11/19/cve-2012-4366-insecure-default-wpa2-passphrase-in-multiple-belkin-wireless-routers/)
- [securityfocus.com](http://www.securityfocus.com/bid/56591)
- [exchange.xforce.ibmcloud.com](https://exchange.xforce.ibmcloud.com/vulnerabilities/80157)

## Questions

### What is CVE-2012-4366?

CVE-2012-4366 is a low-severity flaw in N150 Wireless Router from Belkin, published on 20 November 2012. An attacker has to be on the same local network without logging in. If it works, the attacker can read some data.

### How serious is CVE-2012-4366?

It scores 3.3 out of 10 on the CVSS severity scale, which is low. Our risk score for CVE-2012-4366 is 18 out of 100, which is Info. Its action is "Track". No sign of exploitation and a low forecast. Patch it in your normal update cycle.

### Is CVE-2012-4366 being exploited?

It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 4.6%. That can change at any time, which is why we keep watching.

### Which versions does CVE-2012-4366 affect?

For N150 Wireless Router from Belkin: f7d1301v1. The record lists 4 products in all, each with its versions, under "Who is affected" on this page.

### How do I fix CVE-2012-4366?

Install the update the vendor names in its advisory. If you can't patch today, follow the vendor's mitigation and limit who can reach the affected system from the internet.

## Does CVE-2012-4366 affect you?

EdgeProtect keeps checking for you:

- **Tell us what you run.** Pick your software from a list, or let us work it out from your website.
- **We match it to every flaw.** Over 400,000 published flaws, checked against your list.
- **Ranked by real-world risk.** Every flaw gets a 0 to 100 risk score, kept up to date, led by evidence criminals are using it.
- **Told as soon as we know.** An alert by email, in the app or by webhook to your own tools.

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