What is the vulnerability ID for this issue?

The vulnerability ID for this issue is CVE-2021-20712.

What is the severity of CVE-2021-20712?

The severity of CVE-2021-20712 is medium, with a severity value of 5.3.

How can an attacker exploit this vulnerability?

An attacker can exploit this vulnerability by accessing a device connected to the LAN side from the WAN side due to a defect in the IPv6 firewall function.

Is the NEC Aterm WG2600HS device vulnerable?

No, the NEC Aterm WG2600HS device is not vulnerable.

Is the NEC Aterm WX3000HP device vulnerable?

No, the NEC Aterm WX3000HP device is not vulnerable.

Are there any references for this vulnerability?

Yes, you can find more information about this vulnerability at the following references: [NEC Security Info](https://jpn.nec.com/security-info/secinfo/nv21-010.html) and [JVN](https://jvn.jp/en/jp/JVN29739718/index.html).

Vulnerability/
CVE-2021-20712

medium

5.3

26/4/2021

12/7/2022

CVE-2021-20712

Q: What is the title of the vulnerability?

The title of the vulnerability is Improper access control vulnerability in NEC Aterm WG2600HS firmware Ver1.5.1 and earlier and Aterm WX3000HP firmware Ver1.1.2 and earlier.

First published: Mon Apr 26 2021(Updated: )

Improper access control vulnerability in NEC Aterm WG2600HS firmware Ver1.5.1 and earlier, and Aterm WX3000HP firmware Ver1.1.2 and earlier allows a device connected to the LAN side to be accessed from the WAN side due to the defect in the IPv6 firewall function.

Credit: vultures@jpcert.or.jp

Affected Software	Affected Version	How to fix
NEC Aterm WG2600HS firmware	<=1.5.1
NEC Aterm WG2600HS
Nec Aterm Wx3000hp Firmware	<=1.1.2
Nec Aterm Wx3000hp

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Frequently Asked Questions

What is the vulnerability ID for this issue?
The vulnerability ID for this issue is CVE-2021-20712.
What is the title of the vulnerability?
The title of the vulnerability is Improper access control vulnerability in NEC Aterm WG2600HS firmware Ver1.5.1 and earlier and Aterm WX3000HP firmware Ver1.1.2 and earlier.
What is the severity of CVE-2021-20712?
The severity of CVE-2021-20712 is medium, with a severity value of 5.3.
Which software versions are affected by this vulnerability?
NEC Aterm WG2600HS firmware Ver1.5.1 and earlier, and Aterm WX3000HP firmware Ver1.1.2 and earlier are affected by this vulnerability.
How can an attacker exploit this vulnerability?
An attacker can exploit this vulnerability by accessing a device connected to the LAN side from the WAN side due to a defect in the IPv6 firewall function.
Is the NEC Aterm WG2600HS device vulnerable?
No, the NEC Aterm WG2600HS device is not vulnerable.
Is the NEC Aterm WX3000HP device vulnerable?
No, the NEC Aterm WX3000HP device is not vulnerable.
Are there any references for this vulnerability?
Yes, you can find more information about this vulnerability at the following references: [NEC Security Info](https://jpn.nec.com/security-info/secinfo/nv21-010.html) and [JVN](https://jvn.jp/en/jp/JVN29739718/index.html).

collector/nvd-index
vendor/nec
canonical/nec aterm wg2600hs firmware
version/nec aterm wg2600hs firmware/1.5.1
canonical/nec aterm wg2600hs
canonical/nec aterm wx3000hp firmware
version/nec aterm wx3000hp firmware/1.1.2
canonical/nec aterm wx3000hp

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