SB2026022645 - Multiple vulnerabilities in IBM CICS TX Advanced

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Main Vulnerability Database SB2026022645

SB2026022645 - Multiple vulnerabilities in IBM CICS TX Advanced

Published: February 26, 2026

Security Bulletin ID SB2026022645
Severity
High
Patch available
YES
Number of vulnerabilities 5
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 20% Medium 80%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 5 secuirty vulnerabilities.


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

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.


2) Improper input validation (CVE-ID: CVE-2026-21945)

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation within the Security component in Oracle GraalVM Enterprise Edition. A remote non-authenticated attacker can exploit this vulnerability to perform a denial of service (DoS) attack.


3) Improper input validation (CVE-ID: CVE-2026-21932)

The vulnerability allows a remote non-authenticated attacker to manipulate data.

The vulnerability exists due to improper input validation within the AWT, JavaFX component in Oracle GraalVM Enterprise Edition. A remote non-authenticated attacker can exploit this vulnerability to manipulate data.


4) Improper input validation (CVE-ID: CVE-2026-21933)

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

The vulnerability exists due to improper input validation within the Networking component in Oracle GraalVM Enterprise Edition. A remote non-authenticated attacker can exploit this vulnerability to read and manipulate data.


5) Improper input validation (CVE-ID: CVE-2026-21925)

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

The vulnerability exists due to improper input validation within the RMI component in Oracle GraalVM Enterprise Edition. A remote non-authenticated attacker can exploit this vulnerability to read and manipulate data.


Remediation

Install update from vendor's website.

References