medium
6.1
CWE
79
Advisory Published
Updated

CVE-2021-20680: XSS

First published: Mon Apr 26 2021(Updated: )

Cross-site scripting vulnerability in NEC Aterm devices (Aterm WG1900HP2 firmware Ver.1.3.1 and earlier, Aterm WG1900HP firmware Ver.2.5.1 and earlier, Aterm WG1800HP4 firmware Ver.1.3.1 and earlier, Aterm WG1800HP3 firmware Ver.1.5.1 and earlier, Aterm WG1200HS2 firmware Ver.2.5.0 and earlier, Aterm WG1200HP3 firmware Ver.1.3.1 and earlier, Aterm WG1200HP2 firmware Ver.2.5.0 and earlier, Aterm W1200EX firmware Ver.1.3.1 and earlier, Aterm W1200EX-MS firmware Ver.1.3.1 and earlier, Aterm WG1200HS firmware all versions Aterm WG1200HP firmware all versions Aterm WF800HP firmware all versions Aterm WF300HP2 firmware all versions Aterm WR8165N firmware all versions Aterm W500P firmware all versions, and Aterm W300P firmware all versions) allows remote attackers to inject arbitrary script or HTML via unspecified vectors.

Credit: vultures@jpcert.or.jp

Affected SoftwareAffected VersionHow to fix
NEC Aterm WG1900HP2 Firmware<=1.3.1
NEC Aterm WG1900HP2 Firmware
NEC Aterm WG1900HP Firmware<=2.5.1
NEC Aterm WG1900HP
NEC Aterm WG1800HP4 firmware<=1.3.1
NEC Aterm WG1800HP4
NEC Aterm WG1800HP3 firmware<=1.5.1
Aterm WG1800HP3 Firmware
NEC Aterm WG1200HS3 firmware<=1.1.2
Aterm WG1200HS3
NEC Aterm WG1200HS2 firmware<=2.5.0
Aterm WG1200HS2 Firmware
NEC Aterm WG1200HP3<=1.3.1
NEC Aterm WG1200HP3
NEC Aterm WG1200HP2 firmware<=2.5.0
Aterm WG1200HP2 firmware
NEC Aterm W1200EX Firmware<=1.3.1
NEC Aterm W1200EX-MS
NEC Aterm W1200EX-MS firmware<=1.3.1
Aterm W1200EX-MS Firmware
NEC Aterm WG1200HS
NEC Aterm WG1200HS
NEC Aterm WG1200HP firmware
NEC Aterm WF1200HP
NEC Aterm WF800HP
NEC Aterm WF800HP firmware
NEC Aterm WF300HP2 Firmware
NEC Aterm WF300HP2 Firmware
NEC Aterm WR8165N firmware
Aterm WR8165N
NEC Aterm W500P Firmware
NEC Aterm W500P Firmware
NEC Aterm W300P firmware
NEC Aterm W300P firmware

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2021-20680?

    The severity of CVE-2021-20680 is medium.

  • What software versions are affected by CVE-2021-20680?

    Aterm WG1900HP2 firmware Ver.1.3.1 and earlier, Aterm WG1900HP firmware Ver.2.5.1 and earlier, Aterm WG1800HP4 firmware Ver.1.3.1 and earlier, Aterm WG1800HP3 firmware Ver.1.5.1 and earlier, Aterm WG1200HS2 firmware Ver.2.5.0 and earlier, and more.

  • How can I fix CVE-2021-20680?

    Update your NEC Aterm devices to the latest firmware version to fix CVE-2021-20680.

  • What is the Common Weakness Enumeration (CWE) ID of CVE-2021-20680?

    The CWE ID of CVE-2021-20680 is 79.

  • Where can I find more information about CVE-2021-20680?

    You can find more information about CVE-2021-20680 on the NEC website and the JVN website.

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