---
id: CVE-2025-64645
title: >-
  IBM Concert 1.0.0 through 2.1.0 could allow a local user to escalate their
  privileges due to a race condition of a symbolic link.
summary: >-
  IBM Concert 1.0.0 through 2.1.0 could allow a local user to escalate their
  privileges due to a race condition of a symbolic link.
severity: high
cvss: 7.7
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-367
vendor: ibm
product: concert
affected:
  - 'concert >= 1.0.0, < 2.2.0'
patched:
  - concert 2.2.0
published: '2025-12-26'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T23:10:00.237'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-64645'
references:
  - url: 'https://www.ibm.com/support/pages/node/7255549'
    label: psirt@us.ibm.com
tags:
  - nvd
epss: 0.00124
epssPercentile: 0.01862
ingestedAt: '2026-09-30T23:29:32.513Z'
---

## Overview

IBM Concert 1.0.0 through 2.1.0 could allow a local user to escalate their privileges due to a race condition of a symbolic link.

## Affected

- `concert >= 1.0.0, < 2.2.0`

## Remediation

Upgrade past the affected range:

- `concert 2.2.0`