What’s Vulnerable › Vulnerabilities

CVE-2021-20711

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-04-26 · updated 2026-06-17
• Weakness: CWE-78

Description

Aterm WG2600HS firmware Ver1.5.1 and earlier allows an attacker to execute arbitrary OS commands via unspecified vectors.

Affected products

• NEC Corporation Aterm WG2600HS: through 1.5.1

References

• https://jpn.nec.com/security-info/secinfo/nv21-010.html
• https://jvn.jp/en/jp/JVN29739718/index.html
• https://jpn.nec.com/security-info/secinfo/nv21-010.html
• https://jvn.jp/en/jp/JVN29739718/index.html

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