What is CVE-2026-4622?

CVE-2026-4622 is a critical-severity vulnerability in Nec Aterm Gb1200pe, classified under OS Command Injection. CVSS score: 9.8/10. Published 2026-03-27.

How severe is CVE-2026-4622?

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

RCE in Nec Aterm Gb1200pe

CVE-2026-4622

OS Command Injection vulnerability in NEC Platforms, Ltd. Aterm Series allows a attacker to execute arbitrary OS commands via network.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.009 (54.9th 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_gb1200pe
Nec Aterm_gb1200pe_firmware
Nec Aterm_wf1200cr
Nec Aterm_wf1200cr_firmware
Nec Aterm_wg1200cr
Nec Aterm_wg1200cr_firmware
Nec Aterm_wg2600hm4
Nec Aterm_wg2600hm4_firmware
Nec Aterm_wg2600hp4
Nec Aterm_wg2600hp4_firmware

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

psirt-info@cyber.jp.nec.com (Vendor Advisory)

Frequently asked questions

What is CVE-2026-4622?: CVE-2026-4622 is a critical-severity vulnerability in Nec Aterm Gb1200pe, classified under OS Command Injection. CVSS score: 9.8/10. Published 2026-03-27.
How severe is CVE-2026-4622?: Critical severity. CVSS v3 base score is 9.8 out of 10.