Home/CVE/Improper validation of integrity check value vulnerability in NEC Aterm WF1200CR firmware Ver1.3.2 and earlier, Aterm WG
CVE

CVE-2021-20709

Improper validation of integrity check value vulnerability in NEC Aterm WF1200CR firmware Ver1.3.2 and earlier, Aterm WG

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.

HIGH · CVSS 7.2 EPSS 0.00256
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-354Improper Validation of Integrity Check Value
▤

Affected Products & Versions

3
nec aterm wf1200cr firmware<= 1.3.2
nec aterm wg1200cr firmware<= 1.3.3
nec aterm wg2600hs firmware<= 1.5.1
▣

Scoring & Timeline

7.2
HIGH · CVSS v3.1 · vultures@jpcert.or.jp
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD26 Apr 2021 · 01:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://jpn.nec.com/security-info/secinfo/nv21-010.htmlMitigationVendor Advisory
https://jvn.jp/en/jp/JVN29739718/index.htmlThird Party Advisory
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