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Vulnerability record · CVE-2018-1636 · published 20 August 2019

CVE-2018-1636: Ibm informix dynamic server out-of-bounds write vulnerability

Ibm · Informix Dynamic Server

Stack-based buffer overflow in oninit in IBM Informix Dynamic Server Enterprise Edition 12.1 allows an authenticated user to execute predefined code with root privileges, such as escalating to a root shell. IBM X-Force ID: 144441.

6.7 CVSS 3.1 Medium EPSS 0.44% · top 64.1% CWE-787 · Out-of-bounds write
6.7CVSS 3.1 base score, v2 7.2
0.44%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

Stack-based buffer overflow in oninit in IBM Informix Dynamic Server Enterprise Edition 12.1 allows an authenticated user to execute predefined code with root privileges, such as escalating to a root shell. IBM X-Force ID: 144441.

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.ibm.com/support/docview.wss?uid=ibm10964987 Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/144441 VDB EntryVendor Advisory
https://security.netapp.com/advisory/ntap-20190903-0002/ Third Party Advisory
http://www.ibm.com/support/docview.wss?uid=ibm10964987 Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/144441 VDB EntryVendor Advisory
https://security.netapp.com/advisory/ntap-20190903-0002/ Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2010-4070Ibm informix dynamic server vulnerabilityInteger overflow in librpc.dll in portmap.exe (aka the ISM Portmapper service) in ISM before 2.20.TC1.117 in IBM Informix Dynamic Server (IDS) 7.x be…EPSS 5.1%10.0CVE-2009-2753Ibm informix dynamic server memory buffer overflow vulnerabilityMultiple buffer overflows in the authentication functionality in librpc.dll in the Informix Storage Manager (ISM) Portmapper service (aka portmap.exe…EPSS 11%10.0CVE-2009-2754Ibm informix dynamic server vulnerabilityInteger signedness error in the authentication functionality in librpc.dll in the Informix Storage Manager (ISM) Portmapper service (aka portmap.exe)…EPSS 40%10.0CVE-2008-0949Ibm informix dynamic server vulnerabilityUnspecified vulnerability in IBM Informix Dynamic Server (IDS) 7.x through 11.x allows remote attackers to gain privileges via a malformed connection…EPSS 2.6%10.0CVE-2008-0768Ibm informix dynamic server memory buffer overflow vulnerabilityMultiple stack-based and heap-based buffer overflows in the Windows RPC components for IBM Informix Storage Manager (ISM), as used in Informix Dynami…EPSS 4.5%9.3CVE-2011-1033Ibm informix dynamic server memory buffer overflow vulnerabilityStack-based buffer overflow in oninit in IBM Informix Dynamic Server (IDS) 11.50 allows remote attackers to execute arbitrary code via crafted argume…EPSS 4.8%9.0CVE-2012-4857Ibm informix dynamic server memory buffer overflow vulnerabilityBuffer overflow in IBM Informix 11.50 through 11.50.xC9W2 and 11.70 before 11.70.xC7 allows remote authenticated users to execute arbitrary code via …EPSS 4.6%9.0CVE-2012-3334Ibm informix dynamic server memory buffer overflow vulnerabilityStack-based buffer overflow in IBM Informix Dynamic Server (IDS) 11.50 before 11.50.xC9W2 and 11.70 before 11.70.xC5 allows remote authenticated user…EPSS 3.7%

Source: NIST National Vulnerability Database (record CVE-2018-1636), CISA KEV, FIRST EPSS (scores of 2026-10-01). This page is refreshed as NVD updates the record.