9.3

CVE-2021-47744: cypress one Use of Hard-coded Credentials

CVSS: 9.3v4.0CriticalDeferred
Published 31-12-2025Last modified 02-01-2026
Open JSON

Vulnerability summary

CVE-2021-47744 is a critical (CVSS 9.3) Use of Hard-coded Credentials vulnerability in cypress one. EPSS estimates a 0.33% chance of exploitation in the next 30 days, higher than 24.5% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.3/10
010
Critical · v4.0 (CVE.org)
EPSS score
0.33%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1exploit-database

Timeline

  1. 31-12-2025
    PublishedVulnerability first disclosed.
  2. 02-01-2026
    Last modifiedVulnerability information updated.

Description

Cypress Solutions CTM-200/CTM-ONE 1.3.6 contains hard-coded credentials vulnerability in Linux distribution that exposes root access. Attackers can exploit the static 'Chameleon' password to gain remote root access via Telnet or SSH on affected devices.

CVSS metrics

4 scores · 2 sources · 2 versions

EPSS trend

Probability

0.33%

Chance of exploitation in the next 30 days

Percentile

25%

Versus all other CVEs

30-day change

+0.01 pp

From 0.32% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.33%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • exploit-databaseremotehardwareUnverified

    Cypress Solutions CTM-200/CTM-ONE - Hard-coded Credentials Remote Root (Telnet/SSH)

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Cypress1 product

1 vendor · 1 product

References

4 links