CVE-2025-36156

Local code execution via CECSUB or CECRM overflow

Published Oct 7, 2025 · Updated Oct 7, 2025

Stack-based buffer overflow in IBM InfoSphere Data Replication VSAM Remote Source 11.4 allows local users to execute arbitrary code. IBM identifies CECSUB and CECRM storage files as the input locus but has not disclosed the routine or operation that applies inadequate bounds checking. Local access to either file is required, and successful exploitation executes arbitrary code on the system.

CVSS severity7.4
High
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in IBM InfoSphere Data Replication VSAM Remote Source 11.4 allows local users to execute arbitrary code. IBM identifies CECSUB and CECRM storage files as the input locus but has not disclosed the routine or operation that applies inadequate bounds checking. Local access to either file is required, and successful exploitation executes arbitrary code on the system.

The record

CVE
CVE-2025-36156
Published
Oct 7, 2025
Updated
Oct 7, 2025
Vendor
IBM
Product
IBM Data Replication VSAM for z/OS Remote Source
Classifications
CWE-119
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 7, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 7, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=11.4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

IBM · IBM Data Replication VSAM for z/OS Remote Sourceversion=0 <=11.4

Published CVSS scores

7.8NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.4IBMCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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