What is CVE-2025-12767?

CVE-2025-12767 is a medium-severity vulnerability in IBM Concert, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.3/10. Published 2026-09-22.

How severe is CVE-2025-12767?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Resource exhaustion in IBM Concert

CVE-2025-12767

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.

Published 2026-09-22 · last modified 2026-11-03.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.005 (42.2th percentile), scored 2026-11-04.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 42.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.001

Affected products

IBM Concert

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

www.ibm.com/support/pages/node/7288830 (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2025-12767?: CVE-2025-12767 is a medium-severity vulnerability in IBM Concert, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.3/10. Published 2026-09-22.
How severe is CVE-2025-12767?: Medium severity. CVSS v3 base score is 5.3 out of 10.