What is CVE-2026-17636?

CVE-2026-17636 is a high-severity vulnerability in IBM Financial Transaction Manager (Ftm) For Red Hat Openshift, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2026-09-22.

How severe is CVE-2026-17636?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in IBM Financial Transaction Manager (Ftm) For Red Hat Openshift

CVE-2026-17636

IBM Financial Transaction Manager (FTM) for RedHat OpenShift could allow a remote authenticated attacker to execute arbitrary code due to improper validation of a specified quantity.

Vulnerability class: Buffer Overflow

Published 2026-09-22.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

IBM Financial Transaction Manager (Ftm) For Red Hat Openshift

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

www.ibm.com/support/pages/node/7288641 (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-17636?: CVE-2026-17636 is a high-severity vulnerability in IBM Financial Transaction Manager (Ftm) For Red Hat Openshift, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2026-09-22.
How severe is CVE-2026-17636?: High severity. CVSS v3 base score is 8.8 out of 10.