Cyber Resilience

CVE-2025-64645

Race Condition in Ibm Concert 1.0.0 – 2.2.0

Race Condition
Published
26 December 2025
Modified
29 December 2025
Patch / advisory
View advisory
CVSS Score v3.1 7.7
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS Score 0.0012 2th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2025-64645 is a high-severity Time-of-check Time-of-use (TOCTOU) Race Condition (CWE-367) vulnerability in Ibm Concert. Its CVSS base score is 7.7 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to AC-3 (Access Enforcement) and AC-6 (Least Privilege) — see the control section below for these in your framework.

EU & UK References

Vulnerability Data

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.

CWE(s)
CWE-367

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
attack.mitre.org →
Why these techniques?

The race condition on a symbolic link enables local privilege escalation, directly mapping to T1068: Exploitation for Privilege Escalation.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2025-33089Same product: Ibm Concert
CVE-2025-33102Same product: Ibm Concert
CVE-2024-52366Same product: Ibm Concert
CVE-2025-12771Same product: Ibm Concert
CVE-2024-52367Same product: Ibm Concert
CVE-2025-33099Same product: Ibm Concert
CVE-2024-43180Same product: Ibm Concert
CVE-2025-36440Same product: Ibm Concert
CVE-2025-33090Same product: Ibm Concert
CVE-2024-41785Same product: Ibm Concert

Affected Assets

ibm
concert
1.0.0 — 2.2.0

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)
  • AC-3 Access Enforcement
  • AC-6 Least Privilege
Detect
Catch it (NIST detect / respond)
  • SI-7 Software, Firmware, and Information Integrity
Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V15.4.2
  • V17.2.6

Mitigating Controls (NIST 800-53 r5) AI

AC-3 Access Enforcement good match
prevent

Directly enforces access rights on file operations, blocking the symlink TOCTOU bypass that allows unauthorized privilege changes.

AC-6 Least Privilege good match
prevent

Limits local user privileges so that even a successful race-condition symlink attack cannot escalate beyond the intended permission set.

SI-7 Software, Firmware, and Information Integrity partial match
detect

Verifies integrity of files and symbolic links, enabling detection of unauthorized modifications introduced during the TOCTOU window.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly include coding standards and reviews that prevent TOCTOU race conditions.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.17 Clock synchronization none match
none

Reliable, synchronized time across systems narrows the exploitable window in which a resource state can change between a security check and its use.

References