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CVE-2021-20708

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

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7.2
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Exploitability: 1.2 / Impact: 5.9
Source: NVD

Description

NEC Aterm devices (Aterm WF1200CR firmware Ver1.3.2 and earlier, Aterm WG1200CR firmware Ver1.3.3 and earlier, and Aterm WG2600HS firmware Ver1.5.1 and earlier) allow authenticated attackers to execute arbitrary OS commands by sending a specially crafted request to a specific URL.

Affected (3)

Nec
3 products
Aterm Wf1200cr Firmware
Aterm Wg1200cr Firmware
Aterm Wg2600hs Firmware
Configuration A
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Aterm Wf1200cr Firmware
Up to 1.3.2
Running on/withPlatform Versions
Nec
Aterm Wf1200cr
All versions
Configuration B
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Aterm Wg1200cr Firmware
Up to 1.3.3
Running on/withPlatform Versions
Nec
Aterm Wg1200cr
All versions
Configuration C
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Aterm Wg2600hs Firmware
Up to 1.5.1
Running on/withPlatform Versions
Nec
Aterm Wg2600hs
All versions

Related CWEs

CWE-78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

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.