What is CVE-2025-36156?

CVE-2025-36156 is a high-severity vulnerability in IBM Infosphere Data Replication Vsam For Z/os Remote Source, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.4/10. Published 2025-10-07.

How severe is CVE-2025-36156?

High severity. CVSS v3 base score is 7.4 out of 10.

Is CVE-2025-36156 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in IBM Infosphere Data Replication Vsam For Z/os Remote Source

CVE-2025-36156

IBM InfoSphere Data Replication VSAM for z/OS Remote Source 11.4 is vulnerable to a stack-based buffer overflow, caused by improper bounds checking. A local user with access to the files storing CECSUB or CECRM on the container could overflow the buffer and execute arbitrary code on the system.

Vulnerability class: Buffer Overflow

EPSS: 0.001 (1.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Ibm Infosphere Data Replication Vsam For Z/os Remote Source — versions 0
Ibm Infosphere_data_replication_vsam_for_z\/os_remote_source — versions 11.4

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

psirt@us.ibm.com (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2025-36156?: CVE-2025-36156 is a high-severity vulnerability in IBM Infosphere Data Replication Vsam For Z/os Remote Source, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.4/10. Published 2025-10-07.
How severe is CVE-2025-36156?: High severity. CVSS v3 base score is 7.4 out of 10.
Is CVE-2025-36156 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.