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CVE-2021-20712

nvd nist
Published: Apr 26, 2021Modified: Jun 17, 2026

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5.3
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Exploitability: 3.9 / Impact: 1.4
Source: NVD

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.

Affected (2)

Nec
2 products
Aterm Wg2600hs Firmware
Aterm Wx3000hp Firmware
Configuration A
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Aterm Wg2600hs Firmware
Up to 1.5.1
Running on/withPlatform Versions
Nec
Aterm Wg2600hs
All versions
Configuration B
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Aterm Wx3000hp Firmware
Up to 1.1.2
Running on/withPlatform Versions
Nec
Aterm Wx3000hp
All versions

References (4)

Source: vultures@jpcert.or.jp
MitigationVendor Advisory
Source: vultures@jpcert.or.jp
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
MitigationVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

Timeline

No history available yet.