How severe is CVE-2006-3854?

CVE-2006-3854 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2006-3854 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-3854?

CVE-2006-3854 primarily affects Ibm Informix Dynamic Database Server. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2006-3854?

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-2006-3854 published?

CVE-2006-3854 was published on 2006-08-17 and last updated on 2026-06-16.

CVE-2006-3854

CVE-2006-3854 is a high-severity vulnerability in Ibm Informix Dynamic Database Server 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: 4% (88th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Ibm Informix Dynamic Database Server
Published: 2006-08-17
Last modified: 2026-06-16

Description

Buffer overflow in IBM Informix Dynamic Server (IDS) 9.40.TC7, 9.40.TC8, 10.00.TC4, and 10.00.TC5, when running on Windows, allows remote attackers to execute arbitrary code via a long username, which causes an overflow in vsprintf when displaying in the resulting error message. NOTE: this issue is due to an incomplete fix for CVE-2006-3853.

Frequently asked questions

What is CVE-2006-3854?: Buffer overflow in IBM Informix Dynamic Server (IDS) 9.40.TC7, 9.40.TC8, 10.00.TC4, and 10.00.TC5, when running on Windows, allows remote attackers to execute arbitrary code via a long username, which causes an overflow in vsprintf when displaying in the resulting error message. NOTE: this issue is due to an incomplete fix for CVE-2006-3853.
How severe is CVE-2006-3854?: CVE-2006-3854 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2006-3854 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-3854?: CVE-2006-3854 primarily affects Ibm Informix Dynamic Database Server. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-3854?: 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-2006-3854 published?: CVE-2006-3854 was published on 2006-08-17 and last updated on 2026-06-16.

References

Affected products (4)

cpe:2.3:a:ibm:informix_dynamic_database_server:9.40.tc7:*:*:*:*:*:*:*
cpe:2.3:a:ibm:informix_dynamic_database_server:9.40.tc8:*:*:*:*:*:*:*
cpe:2.3:a:ibm:informix_dynamic_database_server:10.00.tc4:*:*:*:*:*:*:*
cpe:2.3:a:ibm:informix_dynamic_database_server:10.00.tc5:*:*:*:*:*:*:*

More vulnerabilities in Ibm Informix Dynamic Database Server

CVE-2006-3860 — High (CVSS 7.5): IBM Informix Dynamic Server (IDS) before 9.40.xC7 and 10.00 before 10.00.xC3 allows allows remote authenticated users…
CVE-2005-3642 — High (CVSS 7.5): IBM Informix Dynamic Database server running on Windows XP with Simple File Sharing enabled, allows remote attackers to…
CVE-2006-3857 — Medium (CVSS 6.5): Multiple buffer overflows in IBM Informix Dynamic Server (IDS) before 9.40.TC6 and 10.00 before 10.00.TC3 allow remote…
CVE-2006-3859 — Medium (CVSS 4.0): IBM Informix Dynamic Server (IDS) allows remote authenticated users to create and overwrite arbitrary files via the (1)…

All CVEs affecting Ibm Informix Dynamic Database Server →