What is CVE-2021-20709?

CVE-2021-20709 is a vulnerability that allows an attacker with administrative privileges to execute arbitrary OS commands on NEC Aterm WF1200CR, Aterm WG1200CR, and Aterm WG2600HS routers.

What is the severity of CVE-2021-20709?

CVE-2021-20709 is considered critical with a severity rating of 7.2.

How does CVE-2021-20709 impact NEC Aterm WF1200CR firmware Ver1.3.2 and earlier?

CVE-2021-20709 allows an attacker with administrative privileges to execute arbitrary OS commands on NEC Aterm WF1200CR firmware Ver1.3.2 and earlier.

How does CVE-2021-20709 impact NEC Aterm WG1200CR firmware Ver1.3.3 and earlier?

CVE-2021-20709 allows an attacker with administrative privileges to execute arbitrary OS commands on NEC Aterm WG1200CR firmware Ver1.3.3 and earlier.

How does CVE-2021-20709 impact NEC Aterm WG2600HS firmware Ver1.5.1 and earlier?

CVE-2021-20709 allows an attacker with administrative privileges to execute arbitrary OS commands on NEC Aterm WG2600HS firmware Ver1.5.1 and earlier.

Vulnerability/
CVE-2021-20709

critical

CWE

354

26/4/2021

3/8/2024

CVE-2021-20709

First published: Mon Apr 26 2021(Updated: )

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.

Credit: vultures@jpcert.or.jp

Affected Software	Affected Version	How to fix
NEC Aterm WF1200CR firmware	<=1.3.2
NEC Aterm WF1200CR
Nec Aterm Wg1200cr Firmware	<=1.3.3
Nec Aterm Wg1200cr
NEC Aterm WG2600HS firmware	<=1.5.1
NEC Aterm WG2600HS

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Frequently Asked Questions

What is CVE-2021-20709?
CVE-2021-20709 is a vulnerability that allows an attacker with administrative privileges to execute arbitrary OS commands on NEC Aterm WF1200CR, Aterm WG1200CR, and Aterm WG2600HS routers.
What is the severity of CVE-2021-20709?
CVE-2021-20709 is considered critical with a severity rating of 7.2.
How does CVE-2021-20709 impact NEC Aterm WF1200CR firmware Ver1.3.2 and earlier?
CVE-2021-20709 allows an attacker with administrative privileges to execute arbitrary OS commands on NEC Aterm WF1200CR firmware Ver1.3.2 and earlier.
How does CVE-2021-20709 impact NEC Aterm WG1200CR firmware Ver1.3.3 and earlier?
CVE-2021-20709 allows an attacker with administrative privileges to execute arbitrary OS commands on NEC Aterm WG1200CR firmware Ver1.3.3 and earlier.
How does CVE-2021-20709 impact NEC Aterm WG2600HS firmware Ver1.5.1 and earlier?
CVE-2021-20709 allows an attacker with administrative privileges to execute arbitrary OS commands on NEC Aterm WG2600HS firmware Ver1.5.1 and earlier.

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agent/softwarecombine
agent/last-modified-date
agent/first-publish-date
collector/mitre-cve
source/MITRE
vendor/nec
canonical/nec aterm wf1200cr firmware
version/nec aterm wf1200cr firmware/1.3.2
canonical/nec aterm wf1200cr
canonical/nec aterm wg1200cr firmware
version/nec aterm wg1200cr firmware/1.3.3
canonical/nec aterm wg1200cr
canonical/nec aterm wg2600hs firmware
version/nec aterm wg2600hs firmware/1.5.1
canonical/nec aterm wg2600hs

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