How severe is CVE-2006-6221?

CVE-2006-6221 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2006-6221 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-6221?

CVE-2006-6221 affects 2x Thinclientserver. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2006-6221?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2006-6221 published?

CVE-2006-6221 was published on 2006-12-10 and last updated on 2026-06-16.

CVE-2006-6221

CVE-2006-6221 is a high-severity vulnerability in 2x Thinclientserver with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: 2x Thinclientserver
Published: 2006-12-10
Last modified: 2026-06-16

Description

2X ThinClientServer Enterprise Edition before 4.0.2248 allows remote attackers to create multiple privileged accounts via a replay attack using the initial account creation request.

Frequently asked questions

What is CVE-2006-6221?: 2X ThinClientServer Enterprise Edition before 4.0.2248 allows remote attackers to create multiple privileged accounts via a replay attack using the initial account creation request.
How severe is CVE-2006-6221?: CVE-2006-6221 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2006-6221 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-6221?: CVE-2006-6221 affects 2x Thinclientserver. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-6221?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2006-6221 published?: CVE-2006-6221 was published on 2006-12-10 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:2x:thinclientserver:3.0:*:*:*:*:*:*:*

More vulnerabilities in 2x Thinclientserver

CVE-2008-1620 — High (CVSS 7.5): Directory traversal vulnerability in 2X TFTP service (TFTPd.exe) 3.2.0.0 and earlier in 2X ThinClientServer…

All CVEs affecting 2x Thinclientserver →