CVE-2025-27909

9.8 criticalEPSS 0.2%

Critical (9.8) in ibm concert. EPSS 0.2% chance of exploitation in the next 30 days.

IBM Concert Software 1.0.0 through 1.1.0 uses cross-origin resource sharing (CORS) which could allow an attacker to carry out privileged actions as the domain name is not being limited to only trusted domains.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 11% of CVEs (scores of 2026-10-31)
CWEs: CWE-697, CWE-942
Published: 2025-08-18
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

ibm:concert

References

https://www.ibm.com/support/pages/node/7242354

Check your stack JSON