CVE-2026-4621

Published: Mar 27, 2026Modified: Jun 17, 2026

6.3

Vector

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XShow less

Source: psirt-info@cyber.jp.nec.com (Secondary)

Description

Hidden Functionality vulnerability in NEC Platforms, Ltd. Aterm Series allows a attacker to enable telnet via network.

Affected (21)

Nec

21 products

Aterm Wg1200hp4 Firmware

Aterm Wg2600hs Firmware

Aterm Wf1200cr Firmware

Aterm Wg1200cr Firmware

Aterm Wg2600hp4 Firmware

Aterm Wg2600hm4 Firmware

Aterm Wg2600hs2 Firmware

Aterm Wx3000hp Firmware

Aterm Wx3600hp Firmware

Aterm W1200ex Ms Firmware

Aterm Wg1200hp2 Firmware

Aterm Wg1900hp Firmware

Aterm Wg1200hs2 Firmware

Aterm Wg1800hp3 Firmware

Aterm Wg1200hp3 Firmware

Aterm Wg1900hp2 Firmware

Aterm Wg1200hs3 Firmware

Aterm Wg1800hp4 Firmware

Aterm Wg1200hs4 Firmware

Aterm Wx1500hp Firmware

Aterm Wx3000hp2 Firmware

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wg1200hp4 Firmware	All versions

Running on/with	Platform Versions
Nec Aterm Wg1200hp4	All versions

Configuration B

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wg2600hs Firmware	Before 1.7.2

Running on/with	Platform Versions
Nec Aterm Wg2600hs	All versions

Configuration C

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wf1200cr Firmware	Before 1.6.0

Running on/with	Platform Versions
Nec Aterm Wf1200cr	All versions

Configuration D

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wg1200cr Firmware	Before 1.5.0

Running on/with	Platform Versions
Nec Aterm Wg1200cr	All versions

Configuration E

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wg2600hp4 Firmware	Before 1.4.2

Running on/with	Platform Versions
Nec Aterm Wg2600hp4	All versions

Configuration F

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wg2600hm4 Firmware	Before 1.4.2

Running on/with	Platform Versions
Nec Aterm Wg2600hm4	All versions

Configuration G

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wg2600hs2 Firmware	Before 1.3.2

Running on/with	Platform Versions
Nec Aterm Wg2600hs2	All versions

Configuration H

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wx3000hp Firmware	Before 2.5.0

Running on/with	Platform Versions
Nec Aterm Wx3000hp	All versions

Configuration I

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wx3600hp Firmware	Up to 1.5.3

Running on/with	Platform Versions
Nec Aterm Wx3600hp	All versions

Configuration J

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm W1200ex Ms Firmware	All versions

Running on/with	Platform Versions
Nec Aterm W1200ex Ms	All versions

Configuration K

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wg1200hp2 Firmware	All versions

Running on/with	Platform Versions
Nec Aterm Wg1200hp2	All versions

Configuration L

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wg1900hp Firmware	All versions

Running on/with	Platform Versions
Nec Aterm Wg1900hp	All versions

Configuration M

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wg1200hs2 Firmware	All versions

Running on/with	Platform Versions
Nec Aterm Wg1200hs2	All versions

Configuration N

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wg1800hp3 Firmware	All versions

Running on/with	Platform Versions
Nec Aterm Wg1800hp3	All versions

Configuration O

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wg1200hp3 Firmware	All versions

Running on/with	Platform Versions
Nec Aterm Wg1200hp3	All versions

Configuration P

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wg1900hp2 Firmware	All versions

Running on/with	Platform Versions
Nec Aterm Wg1900hp2	All versions

Configuration Q

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wg1200hs3 Firmware	All versions

Running on/with	Platform Versions
Nec Aterm Wg1200hs3	All versions

Configuration R

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wg1800hp4 Firmware	All versions

Running on/with	Platform Versions
Nec Aterm Wg1800hp4	All versions

Configuration S

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wg1200hs4 Firmware	All versions

Running on/with	Platform Versions
Nec Aterm Wg1200hs4	All versions

Configuration T

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wx1500hp Firmware	Before 1.4.2

Running on/with	Platform Versions
Nec Aterm Wx1500hp	All versions

Configuration U

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Nec Aterm Wx3000hp2 Firmware	Before 1.3.2

Running on/with	Platform Versions
Nec Aterm Wx3000hp2	All versions

Related CWEs

CWE-912

Hidden Functionality

The product contains functionality that is not documented, not part of the specification, and not accessible through an interface or command sequence that is obvious to the product's users or administrators.

References (1)

https://jpn.nec.com/security-info/secinfo/nv26-001_en.html

Source: psirt-info@cyber.jp.nec.com

Vendor Advisory

Timeline

No history available yet.