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CVE-2006-3854

20
FAUCET Score

CVE-2006-3854 describes a buffer overflow vulnerability in specific versions of IBM Informix Dynamic Server (IDS) running on Windows. This flaw, an incomplete fix for a previous issue, allows remote attackers to execute arbitrary code by supplying an excessively long username, which triggers an overflow during error message generation. With a CVSS score of 7.5, this vulnerability is considered highly severe due to its network-based attack vector, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
9.40.tc7CPE matchmatch criteria
cpe:2.3:a:ibm:informix_dynamic_database_server:9.40.tc7:*:*:*:*:*:*:*
9.40.tc8CPE matchmatch criteria
cpe:2.3:a:ibm:informix_dynamic_database_server:9.40.tc8:*:*:*:*:*:*:*
10.00.tc4CPE matchmatch criteria
cpe:2.3:a:ibm:informix_dynamic_database_server:10.00.tc4:*:*:*:*:*:*:*
10.00.tc5CPE matchmatch criteria
cpe:2.3:a:ibm:informix_dynamic_database_server:10.00.tc5:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.63%
Probability of exploitation in next 30 days
EPSS Percentile
88.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0363 is in the 79th percentile among its peer group of 51,485 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

securityreason.com / securityalert/1409
exchange.xforce.ibmcloud.com / vulnerabilities/28381
databasesecurity.com / informix/DatabaseHackersHandbook-AttackingInformix.pdf
Exploit
securityfocus.com / archive/1/443133/100/0/threaded
securityfocus.com / archive/1/443150/100/0/threaded