6.3

CVE-2026-4621: nec platforms, ltd. aterm gb1200pe Hidden Functionality

CVSS: 6.3v4.0MediumAnalyzed
Published 27-03-2026Last modified 10-04-2026
Open JSON

Vulnerability summary

CVE-2026-4621 is a medium (CVSS 6.3) Hidden Functionality vulnerability in nec platforms, ltd. aterm gb1200pe. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 15.4% of scored vulnerabilities.

Overall risk
25/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.3/10
010
Medium · v4.0 (CVE.org)
EPSS score
0.25%
0%100%
Low · +0.09 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 27-03-2026
    PublishedVulnerability first disclosed.
  2. 10-04-2026
    Last modifiedVulnerability information updated.

Description

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

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.25%

Chance of exploitation in the next 30 days

Percentile

15%

Versus all other CVEs

30-day change

+0.09 pp

From 0.16% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.25%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Nec platforms, ltd.25 products
Nec10 products

2 vendors · 35 products

References

1 links