CVE-2021-20680

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

6.1

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploitability: 2.8 / Impact: 2.7

Source: NVD

Description

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.

Affected (17)

Products: Nec: Aterm Wg1900hp2 Firmware, Aterm Wg1900hp Firmware, Aterm Wg1800hp4 Firmware, Aterm Wg1800hp3 Firmware, Aterm Wg1200hs3 Firmware, Aterm Wg1200hs2 Firmware, Aterm Wg1200hp3 Firmware, Aterm Wg1200hp2 Firmware, Aterm W1200ex Firmware, Aterm W1200ex Ms Firmware, Aterm Wg1200hs Firmware, Aterm Wg1200hp Firmware, Aterm Wf800hp Firmware, Aterm Wf300hp2 Firmware, Aterm Wr8165n Firmware, Aterm W500p Firmware, Aterm W300p Firmware

Nec

17 products

Aterm Wg1900hp2 Firmware

Aterm Wg1900hp Firmware

Aterm Wg1800hp4 Firmware

Aterm Wg1800hp3 Firmware

Aterm Wg1200hs3 Firmware

Aterm Wg1200hs2 Firmware

Aterm Wg1200hp3 Firmware

Aterm Wg1200hp2 Firmware

Aterm W1200ex Firmware

Aterm W1200ex Ms Firmware

Aterm Wg1200hs Firmware

Aterm Wg1200hp Firmware

Aterm Wf800hp Firmware

Aterm Wf300hp2 Firmware

Aterm Wr8165n Firmware

Aterm W500p Firmware

Aterm W300p Firmware

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wg1900hp2 Firmware	Up to 1.3.1

Running on/with	Platform Versions
Nec Aterm Wg1900hp2	All versions

Configuration B

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wg1900hp Firmware	Up to 2.5.1

Running on/with	Platform Versions
Nec Aterm Wg1900hp	All versions

Configuration C

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wg1800hp4 Firmware	Up to 1.3.1

Running on/with	Platform Versions
Nec Aterm Wg1800hp4	All versions

Configuration D

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wg1800hp3 Firmware	Up to 1.5.1

Running on/with	Platform Versions
Nec Aterm Wg1800hp3	All versions

Configuration E

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wg1200hs3 Firmware	Up to 1.1.2

Running on/with	Platform Versions
Nec Aterm Wg1200hs3	All versions

Configuration F

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wg1200hs2 Firmware	Up to 2.5.0

Running on/with	Platform Versions
Nec Aterm Wg1200hs2	All versions

Configuration G

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wg1200hp3 Firmware	Up to 1.3.1

Running on/with	Platform Versions
Nec Aterm Wg1200hp3	All versions

Configuration H

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wg1200hp2 Firmware	Up to 2.5.0

Running on/with	Platform Versions
Nec Aterm Wg1200hp2	All versions

Configuration I

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm W1200ex Firmware	Up to 1.3.1

Running on/with	Platform Versions
Nec Aterm W1200ex	All versions

Configuration J

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm W1200ex Ms Firmware	Up to 1.3.1

Running on/with	Platform Versions
Nec Aterm W1200ex Ms	All versions

Configuration K

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wg1200hs Firmware	All versions

Running on/with	Platform Versions
Nec Aterm Wg1200hs	All versions

Configuration L

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wg1200hp Firmware	All versions

Running on/with	Platform Versions
Nec Aterm Wg1200hp	All versions

Configuration M

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wf800hp Firmware	All versions

Running on/with	Platform Versions
Nec Aterm Wf800hp	All versions

Configuration N

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wf300hp2 Firmware	All versions

Running on/with	Platform Versions
Nec Aterm Wf300hp2	All versions

Configuration O

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wr8165n Firmware	All versions

Running on/with	Platform Versions
Nec Aterm Wr8165n	All versions

Configuration P

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm W500p Firmware	All versions

Running on/with	Platform Versions
Nec Aterm W500p	All versions

Configuration Q

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm W300p Firmware	All versions

Running on/with	Platform Versions
Nec Aterm W300p	All versions

Related CWEs

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (4)

https://jpn.nec.com/security-info/secinfo/nv21-008.html

Source: vultures@jpcert.or.jp

Vendor Advisory

https://jvn.jp/en/jp/JVN67456944/index.html

Source: vultures@jpcert.or.jp

Third Party Advisory

https://jpn.nec.com/security-info/secinfo/nv21-008.html

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

https://jvn.jp/en/jp/JVN67456944/index.html

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

Timeline

No history available yet.