What is CVE-2026-78543?

CVE-2026-78543 is a medium-severity vulnerability, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 5.3/10. Published 2026-09-04.

How severe is CVE-2026-78543?

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

CVE-2026-78543

CVE-2026-78543

IBM App Connect Enterprise 13.0.1.0 through 13.0.8.1, and 12.0.1.0 through 12.0.12.28 and IBM Integration Bus for z/OS 10.1.0.0 through 10.1.0.7 could allow a remote attacker to cause a denial of service due to an infinite loop.

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.

Weakness classification (CWE)

CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)

References

psirt@us.ibm.com

Frequently asked questions

What is CVE-2026-78543?: CVE-2026-78543 is a medium-severity vulnerability, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 5.3/10. Published 2026-09-04.
How severe is CVE-2026-78543?: Medium severity. CVSS v3 base score is 5.3 out of 10.