What is CVE-2025-33090?

CVE-2025-33090 is a high-severity vulnerability in Ibm Concert Software, classified under Inefficient Regular Expression Complexity. CVSS score: 7.5/10. Published 2025-08-18.

How severe is CVE-2025-33090?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2025-33090 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Ibm Concert Software

CVE-2025-33090

IBM Concert Software 1.0.0 through 1.1.0 could allow a remote attacker to cause a denial of service using a specially crafted regular expression that would cause excessive resource consumption.

Vulnerability class: ReDoS (Regular Expression Denial of Service)

EPSS: 0.001 (31.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Ibm Concert Software — versions 1.0.0

Weakness classification (CWE)

CWE-1333 — Inefficient Regular Expression Complexity

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

www.ibm.com/support/pages/node/7242354 (vendor-advisory, patch)

Frequently asked questions

What is CVE-2025-33090?: CVE-2025-33090 is a high-severity vulnerability in Ibm Concert Software, classified under Inefficient Regular Expression Complexity. CVSS score: 7.5/10. Published 2025-08-18.
How severe is CVE-2025-33090?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2025-33090 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.