CVE-2009-3691

highpriority · attend · 49EPSS 0.070 · 94 %ileexploit · functionalEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · functional

Likely / severe?

7.04% (94th) EPSS

CVSS 9.3 · high

Is it mine?

4 products

Check your exposure

Who says so?

2 sources

enisa_euvd · nvd

EPSS · scored 2026-10-27

Multiple integer overflows in setnet32.exe 3.50.0.13752 in IBM Informix Client SDK 3.0 and 3.50 and Informix Connect Runtime 3.x allow remote attackers to execute arbitrary code via a .nfx file with a crafted (1) HostSize, and possibly (2) ProtoSize and (3) ServerSize, field that triggers a stack-based buffer overflow involving a crafted HostList field. NOTE: some of these details are obtained from third party information.

cvss

Technical severity, 0–10. One row per scoring source.

9.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.09.3highAV:N/AC:M/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 8.6 · impact 10

v2.08.4highAV:N/AC:M/Au:N/C:C/I:C/A:C/E:POCsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-189USprimary

exploits (1)

Public proof-of-concept and weaponised exploit code.

EDB-10070IBM Informix Client SDK 3.0 - '.nfx' File Integer Overflowfunctional · exploit_db

affected products (4)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
ibm informix client sdk= 3.0nvdUScpe:2.3:a:ibm:informix_client_sdk:*:*:*:*:*:*:*:*
ibm informix client sdk= 3.50nvdUScpe:2.3:a:ibm:informix_client_sdk:*:*:*:*:*:*:*:*
ibm informix connect runtime= 3.0nvdUScpe:2.3:a:ibm:informix_connect_runtime:*:*:*:*:*:*:*:*

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

enisa_euvd nvd NVD CVE.org MITRE

published 2009-10-13modified 2026-06-16

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+1337 more

references (14)

External citations — patches, advisories, analysis.

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