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CVE-2021-20709

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

Improper validation of integrity check value vulnerability in NEC 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 allows an attacker with an administrative privilege 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-354
Improper Validation of Integrity Check Value
The product does not validate or incorrectly validates the integrity check values or "checksums" of a message. This may prevent it from detecting if the data has been modified or corrupted in transmission.

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.