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Critical severity · published Mar 27, 2026
CVE-2026-4620
OS Command Injection vulnerability in NEC Platforms, Ltd
9.8
CVSS
1%
EPSS
No
On KEV
Description
OS Command Injection vulnerability in NEC Platforms, Ltd. Aterm Series allows a attacker to execute arbitrary OS commands via network.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 63% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AW
Aterm WX1500HP · NEC Platforms, Ltd.
Before Ver. 1.4.2 · source: vendor
AW
Aterm WX3600HP · NEC Platforms, Ltd.
Before Ver. 1.4.2 · source: vendor
AW
Aterm Wx1500hp Firmware · Nec
before 1.4.2 · source: NVD
AW
Aterm Wx3600hp Firmware · Nec
before 1.5.3 · source: NVD
Affected product
AW
Aterm WX1500HP
NEC Platforms, Ltd.
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-4620
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-4620
Vendor Advisory
https://jpn.nec.com/security-info/secinfo/nv26-001_en.html
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