What is CVE-2025-64648?

CVE-2025-64648 is a medium-severity vulnerability in IBM Concert, classified under Cleartext Transmission of Sensitive Information. CVSS score: 5.9/10. Published 2026-03-25.

How severe is CVE-2025-64648?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Vulnerability in IBM Concert

CVE-2025-64648

IBM Concert 1.0.0 through 2.2.0 transmits data in clear text that could allow an attacker to obtain sensitive information using man in the middle techniques.

Published 2026-03-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (7.4th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 7.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

IBM Concert — versions 1.0.0

Weakness classification (CWE)

CWE-319 — Cleartext Transmission of Sensitive Information

References

www.ibm.com/support/pages/node/7267105 (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2025-64648?: CVE-2025-64648 is a medium-severity vulnerability in IBM Concert, classified under Cleartext Transmission of Sensitive Information. CVSS score: 5.9/10. Published 2026-03-25.
How severe is CVE-2025-64648?: Medium severity. CVSS v3 base score is 5.9 out of 10.