Security Bulletin
Summary
Multiple vulnerabilities in IBM® SDK Java™ Technology Edition that is shipped as part of multiple IBM Tivoli Monitoring (ITM) components. CVE-2026-21945, CVE-2026-21932, CVE-2026-21933, CVE-2026-21925 and CVE-2026-1188
Vulnerability Details
CVEID: CVE-2026-21945
DESCRIPTION: Java SE is vulnerable to a denial of service, caused by an easily exploitable vulnerability issue that allows an remote attacker to cause a hang or repeatable crash of the application.
CWE: CWE-400: Uncontrolled Resource Consumption
CVSS Source: secalert_us@oracle.com
CVSS Base score: 7.5
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
CVEID: CVE-2026-21932
DESCRIPTION: Java SE could allow a remote attacker to bypass security controls and create, delete, or modify critical data or all accessible data, caused by an easily exploitable vulnerability.
CVSS Source: secalert_us@oracle.com
CVSS Base score: 7.4
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N)
CVEID: CVE-2026-21933
DESCRIPTION: Java SE could allow a remote attacker to bypass security controls and perform unauthorized update, insert, delete, or read operations on accessible data, caused by an easily exploitable vulnerability.
CVSS Source: secalert_us@oracle.com
CVSS Base score: 6.1
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)
CVEID: CVE-2026-21925
DESCRIPTION: Java SE could allow a remote unauthenticated attacker to bypass security controls and perform unauthorized update, insert, delete, or read operations on accessible data, caused by an difficult to exploit vulnerability.
CVSS Source: secalert_us@oracle.com
CVSS Base score: 4.8
CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N)
CVEID: CVE-2026-1188
DESCRIPTION: In the Eclipse OMR port library component since release 0.2.0, an API function to return the textual names of all supported processor features was not accounting for the separator inserted between processor features. If the output buffer supplied to this function was incorrectly sized, failing to account for the separator when determining when a write to the buffer was safe could lead to a buffer overflow. This issue is fixed in Eclipse OMR version 0.8.0.
CWE: CWE-131: Incorrect Calculation of Buffer Size
CVSS Source: NVD
CVSS Base score: 9.8
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| IBM Tivoli Monitoring | 6.3.0.7 through 6.3.0.7 Service Pack 22 |
Remediation/Fixes
Java Tivoli Enterprise Portal Remediation:
These vulnerabilities exist where the affected Java Runtime Environment (JRE) is installed on systems running the Tivoli Enterprise Portal Browser client or Java WebStart client. The affected JRE is installed on a system when logging in to the IBM Tivoli Enterprise Portal by using the WebStart client and a JRE at the required level does not exist. The portal provides an option to download the provided JRE to the system.
This fix provides updated JRE packages for the portal server, which can be downloaded by new client systems. Once the fix is installed on the portal server, instructions in the readme file can be used to download the updated JRE from the portal to the portal clients.
Fix |
VRMF |
How to acquire fix |
| 6.X.X-TIV-ITM_JRE_TEP-20260327 | 6.3.0 through 6.3.0 FP7 (including any service packs) | IBM Tivoli Monitoring 6 JRE Update (6.X.X-TIV-ITM_JRE_TEP-20260327) |
Java (CANDLEHOME) Remediation:
The patch can be installed and updates the shared Tivoli Enterprise-supplied JRE (jr component on UNIX/Linux) or embedded JVM (JM component on Windows).
Fix |
VRMF |
How to acquire fix |
| 6.X.X-TIV-ITM_JRE_CANDLEHOME-20260327 | 6.3.0 FP7 Service Pack 6 or later | IBM Tivoli Monitoring 6 JRE Update (6.X.X-TIV-ITM_JRE_CANDLEHOME-20260327) |
Note CVE-2026-1188 was remediated in previous fix: https://www.ibm.com/support/pages/node/7252217
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
Acknowledgement
Change History
17 Feb 2026: Initial Publication
*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.
Disclaimer
According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.
Document Location
Worldwide
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Document Information
Modified date:
17 February 2026
Initial Publish date:
17 February 2026
UID
ibm17261060