Stack-Based Buffer Overflow in IBM InfoSphere Data Replication VSAM for z/OS
CVE-2025-36156

7.4HIGH

Key Information:

Vendor

IBM
Status
Infosphere Data Replication Vsam For Z/os Remote Source
Vendor
CVE Published:
7 October 2025

What is CVE-2025-36156?

A stack-based buffer overflow vulnerability exists in IBM InfoSphere Data Replication VSAM for z/OS version 11.4 due to inadequate bounds checking. This flaw allows a local user with access to specific files to manipulate memory, potentially leading to arbitrary code execution on the target system. Ensuring proper access controls and applying patches is crucial to mitigate the risk associated with this vulnerability.

Affected Version(s)

InfoSphere Data Replication VSAM for z/OS Remote Source z/OS 0 <= 11.4

References

https://www.ibm.com/support/pages/node/7247224
vendor-advisorypatch

CVSS V3.1

Score:
7.4
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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CVE-2025-36156 : Stack-Based Buffer Overflow in IBM InfoSphere Data Replication VSAM for z/OS