SB2026052026 - Multiple vulnerabilities in IBM Data Studio client

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Main Vulnerability Database SB2026052026

SB2026052026 - Multiple vulnerabilities in IBM Data Studio client

Published: May 20, 2026

Security Bulletin ID SB2026052026
CSH Severity
High
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 50% Medium 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Improper validation of certificate with host mismatch (CVE-ID: CVE-2025-68161)

CWE-ID: CWE-297 - Improper Validation of Certificate with Host Mismatch

CVSSv4: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:L/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to the Socket Appender does not perform TLS hostname verification of the peer certificate, even when the "verifyHostName" configuration attribute or the "log4j2.sslVerifyHostName"  system property is set to true. A remote attacker can perform MitM attack and intercept or redirect the log traffic. 


2) Incorrect Calculation of Buffer Size (CVE-ID: CVE-2026-1188)

CWE-ID: CWE-131 - Incorrect Calculation of Buffer Size

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to API function to return the textual names of all supported processor features was not accounting for the separator inserted between processor features. A remote attacker can pass specially crafted data to the application, trigger the incorrect calculation of buffer size and execute arbitrary code on the target system.


Remediation

Install update from vendor's website.

References