What is CVE-2021-20711?

CVE-2021-20711 is a critical-severity vulnerability in Nec Aterm Wg2600hs, classified under OS Command Injection. CVSS score: 9.8/10. Published 2021-04-26.

How severe is CVE-2021-20711?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Nec Aterm Wg2600hs

CVE-2021-20711

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

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.014 (68.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Nec Aterm_wg2600hs
Nec Aterm_wg2600hs_firmware
Nec Corporation Aterm Wg2600hs — versions firmware Ver1.5.1 and earlier

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

vultures@jpcert.or.jp (x_refsource_MISC, Mitigation, Vendor Advisory)
vultures@jpcert.or.jp (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-20711?: CVE-2021-20711 is a critical-severity vulnerability in Nec Aterm Wg2600hs, classified under OS Command Injection. CVSS score: 9.8/10. Published 2021-04-26.
How severe is CVE-2021-20711?: Critical severity. CVSS v3 base score is 9.8 out of 10.