CVE-2025-12767 IBM CVE debrief

Who should care

Defenders responsible for IBM Concert installations should assess exposure and prioritize verification of affected versions. This includes operators, platform administrators, vulnerability management teams, and security teams who need to verify affected versions and assess exposure to CVE-2025-12767.

Why it matters

Defenders should prioritize verifying affected versions and assessing exposure to CVE-2025-12767, as a remote attacker could cause a denial of service in IBM Concert 1.0.0 through 3.0.0.

• Denial of service attacks could lead to system downtime
• Excessive resource consumption could impact system performance
• Verification of affected versions is necessary to prevent exposure

Technical summary

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. The vulnerability affects IBM Concert installations, and defenders should assess exposure and prioritize verification of affected versions. The vulnerability can lead to system downtime and impact system performance.

Defensive priority

Defenders should prioritize verifying affected versions and assessing exposure, as a remote attacker could cause a denial of service.

Recommended defensive actions

• Verify affected versions of IBM Concert and assess exposure
• Implement compensating controls to detect and prevent denial of service attacks
• Monitor for suspicious activity and update IBM Concert to a non-vulnerable version if available

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its description and affected versions. The vulnerability is caused by a specially crafted regular expression that can lead to excessive resource consumption. Defenders should verify affected versions and assess exposure to CVE-2025-12767. The CVE Program record and NVD entry provide source-provided CVE metadata and official vulnerability assessment.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.