CVE-2025-12767

Analyzed Analyzed - Analysis Complete

IBM Concert Regex Denial of Service Vulnerability

Publication date: 2026-09-22

Last updated on: 2026-11-03

Assigner: IBM Corporation

Description

IBM Concert 1.0.0 through 3.0.0 could allow a remote attacker to cause a denial of service using a specially crafted regular expression that would cause excessive resource consumption.

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Meta Information

Published

2026-09-22

Last Modified

2026-11-03

Generated

2026-11-08

AI Q&A

2026-09-23

EPSS Evaluated

2026-11-07

NVD

CVE-2025-12767

EUVD

EUVD-2025-210992

Affected Vendors & Products

Vendor	Product	Version / Range
ibm	concert	From 1.0.0 (inc) to 3.0.0 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-770	The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

Attack-Flow Graph

Executive Summary

IBM Concert versions 1.0.0 through 3.0.0 are vulnerable to a denial of service attack. A remote attacker could exploit this by sending a specially crafted regular expression that causes excessive resource consumption on the affected system.

Detection Guidance

This vulnerability involves excessive resource consumption due to a crafted regular expression in IBM Concert versions 1.0.0 through 3.0.0. Detection requires monitoring for unusual CPU or memory usage spikes during regex processing. Check logs for failed requests or timeouts. Use system monitoring tools like top, htop, or ps to observe process resource usage. No specific commands are provided in the context.

Impact Analysis

This vulnerability could lead to system slowdowns or complete unavailability of IBM Concert services due to resource exhaustion. It may disrupt normal operations and require system restarts to recover.

Compliance Impact

This vulnerability causes excessive resource consumption leading to denial of service, which may impact availability of systems processing personal data. Compliance with GDPR and HIPAA requires maintaining availability of personal health or user data, so such disruptions could potentially violate these regulations if not mitigated.

Mitigation Strategies

Update IBM Concert to the latest version beyond 3.0.0 to address the excessive resource consumption issue. Monitor network traffic for unusual patterns that may indicate a denial of service attempt.

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