CVE-2021-20712

Description

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.

5.3

CVSS

Severity: Medium

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.25%

Vendor Advisory nec.com

Affected: NEC Corporation NEC Aterm devices

References

Link	Tags
https://jpn.nec.com/security-info/secinfo/nv21-010.html	mitigation vendor advisory
https://jvn.jp/en/jp/JVN29739718/index.html	third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-20712?: CVE-2021-20712 has been scored as a medium severity vulnerability.
How to fix CVE-2021-20712?: To fix CVE-2021-20712, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-20712 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2021-20712 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-20712?: CVE-2021-20712 affects NEC Corporation NEC Aterm devices.

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