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CVE-2011-1033

29
FAUCET Score

CVE-2011-1033 describes a stack-based buffer overflow vulnerability in the oninit component of IBM Informix Dynamic Server (IDS) version 11.50. This flaw allows remote attackers to execute arbitrary code by supplying crafted arguments within the USELASTCOMMITTED session environment option of a SQL SET ENVIRONMENT statement. With a CVSS score of 9.3, this vulnerability is critical, indicating a high potential for complete compromise of confidentiality, integrity, and availability with medium attack complexity and no authentication required. Despite its severity, 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
11.50CPE matchmatch criteria
cpe:2.3:a:ibm:informix_dynamic_server:11.50:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

AV:N/AC:M/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
4.76%
Probability of exploitation in next 30 days
EPSS Percentile
90.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0476 is in the 57th percentile among its peer group of 8,918 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 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

dvlabs.tippingpoint.com / blog/2011/02/07/zdi-disclosure-ibm
secunia.com / advisories/43212
Vendor Advisory
securityreason.com / securityalert/8078
exchange.xforce.ibmcloud.com / vulnerabilities/65209
securityfocus.com / archive/1/516250/100/0/threaded
securityfocus.com / bid/46230
vupen.com / english/advisories/2011/0309
Vendor Advisory
zerodayinitiative.com / advisories/ZDI-11-050