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CVE-2005-3642

19
FAUCET Score

CVE-2005-3642 describes an authentication bypass vulnerability in IBM Informix Dynamic Database server running on Windows XP with Simple File Sharing enabled. Attackers can log on to the guest account by providing an invalid username, leading to potential compromise of confidentiality, integrity, and availability. With a CVSS score of 7.5, this vulnerability is easily exploitable over the network with low attack complexity and no authentication required. Despite its age, there is no known public exploit code, active exploitation, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
9.3CPE matchmatch criteria
cpe:2.3:a:ibm:informix_dynamic_database_server:9.3:*:*:*:*:*:*:*
9.40.uc1CPE matchmatch criteria
cpe:2.3:a:ibm:informix_dynamic_database_server:9.40.uc1:*:*:*:*:*:*:*
9.40.uc2CPE matchmatch criteria
cpe:2.3:a:ibm:informix_dynamic_database_server:9.40.uc2:*:*:*:*:*:*:*
9.40.uc3CPE matchmatch criteria
cpe:2.3:a:ibm:informix_dynamic_database_server:9.40.uc3:*:*:*:*:*:*:*

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
1.41%
Probability of exploitation in next 30 days
EPSS Percentile
69.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0141 is in the 51st 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

ngssoftware.com / papers/database-on-xp.pdf
Vendor Advisory
securityfocus.com / bid/15451