CVE-2025-36083

Local buffer disclosure via uncleared heap memory

Published Oct 28, 2025 · Updated Oct 28, 2025

Heap-memory clearing weakness in IBM Concert 1.0.0 through 2.0.0 allows local users to access residual sensitive buffer data. Concert releases heap memory without clearing prior sensitive contents, leaving residual data available for later local inspection. IBM has not disclosed the affected component or access path, and its published impact assessment identifies interruption rather than disclosure.

CVSS severity6.2
Medium
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

Heap-memory clearing weakness in IBM Concert 1.0.0 through 2.0.0 allows local users to access residual sensitive buffer data. Concert releases heap memory without clearing prior sensitive contents, leaving residual data available for later local inspection. IBM has not disclosed the affected component or access path, and its published impact assessment identifies interruption rather than disclosure.

The record

CVE
CVE-2025-36083
Published
Oct 28, 2025
Updated
Oct 28, 2025
Vendor
IBM
Product
IBM Concert
Classifications
CWE-244
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 28, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 28, 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=1.0.0 <=2.0.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

IBM · IBM Concertversion=1.0.0 <=2.0.0

Published CVSS scores

6.2IBMCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/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.

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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-244Improper Clearing of Heap Memory Before Release ('Heap Inspection')

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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