Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2026-4621

Severity CVSS v4.0:
MEDIUM
Type:
Unavailable / Other
Publication date:
27/03/2026
Last modified:
20/04/2026

Description

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

Impact

Vector 4.0
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 CVSS v4.0 Severity and Metrics:

Base Score: 6.30 MEDIUM
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

Attack Vector (AV): Network
Attack Complexity (AC): High
Attack Requirements (AT): None
Privileges Required (PR): None
User Interaction (UI): None
Confidentiality (VC): Low
Integrity (VI): Low
Availability (VA): Low
Confidentiality (SC): None
Integrity (SI): None
Availability (SA): None

Base Score 4.0
6.30
Severity 4.0
MEDIUM
Vector 3.x
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L CVSS v3.1 Severity and Metrics:

Base Score: 5.60 MEDIUM
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): Low
Integrity (I): Low
Availability (A): Low

Base Score 3.x
5.60
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:nec:aterm_wg1200hp4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:nec:aterm_wg1200hp4:-:*:*:*:*:*:*:*
cpe:2.3:o:nec:aterm_wg2600hs_firmware:*:*:*:*:*:*:*:* 1.7.2 (excluding)
cpe:2.3:h:nec:aterm_wg2600hs:-:*:*:*:*:*:*:*
cpe:2.3:o:nec:aterm_wf1200cr_firmware:*:*:*:*:*:*:*:* 1.6.0 (excluding)
cpe:2.3:h:nec:aterm_wf1200cr:-:*:*:*:*:*:*:*
cpe:2.3:o:nec:aterm_wg1200cr_firmware:*:*:*:*:*:*:*:* 1.5.0 (excluding)
cpe:2.3:h:nec:aterm_wg1200cr:-:*:*:*:*:*:*:*
cpe:2.3:o:nec:aterm_wg2600hp4_firmware:*:*:*:*:*:*:*:* 1.4.2 (excluding)
cpe:2.3:h:nec:aterm_wg2600hp4:-:*:*:*:*:*:*:*
cpe:2.3:o:nec:aterm_wg2600hm4_firmware:*:*:*:*:*:*:*:* 1.4.2 (excluding)
cpe:2.3:h:nec:aterm_wg2600hm4:-:*:*:*:*:*:*:*
cpe:2.3:o:nec:aterm_wg2600hs2_firmware:*:*:*:*:*:*:*:* 1.3.2 (excluding)
cpe:2.3:h:nec:aterm_wg2600hs2:-:*:*:*:*:*:*:*
cpe:2.3:o:nec:aterm_wx3000hp_firmware:*:*:*:*:*:*:*:* 2.5.0 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools