---
title: "CVE-2026-6928: IBM Concert - Use After Free"
description: "IBM Concert 1.0.0 through 3.0.0 contains a use after free vulnerability caused by accessing memory after it has been freed, letting attackers corrupt memory, cause crashes, or execute arbitrary code, exploit requires attacker to influence program execution or input."
url: https://panop.io/threat-heartbeat/CVE-2026-6928/
---

# CVE-2026-6928 IBM Concert - Use After Free

IBM Concert 1.0.0 through 3.0.0 contains a use after free vulnerability caused by accessing memory after it has been freed, letting attackers corrupt memory, cause crashes, or execute arbitrary code, exploit requires attacker to influence program execution or input.

CVSS base score 9.8 /10

Critical

CISA KEV

Not listed

Public exploit

None known

EPSS

0.45% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-6928)

## Details

Type

Use After Free

Impact

Remote Code Execution, Denial Of Service, Data Tampering

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Published

23 September 2026

Updated

15 October 2026

Weakness

[CWE-416](https://cwe.mitre.org/data/definitions/416.html)

## Vendor fix

Update to the latest version beyond 3.0.0.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-6928](https://nvd.nist.gov/vuln/detail/CVE-2026-6928)
- [https://www.ibm.com/support/pages/node/7288830](https://www.ibm.com/support/pages/node/7288830)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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