What is CVE-2026-78399?

CVE-2026-78399 is a medium-severity vulnerability in IBM Security Verify Access, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2026-10-08.

How severe is CVE-2026-78399?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Resource exhaustion in IBM Security Verify Access

CVE-2026-78399

IBM Security Verify Access 10.0 through 10.0.9.2 and IBM Verify Identity Access 11.0 through 11.0.3 could allow an authenticated user to cause a denial of service using a specially crafted HTTP query due to improper allocation of system resources

Published 2026-10-08 · last modified 2026-10-09.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/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

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

www.ibm.com/support/pages/node/7291628 (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-78399?: CVE-2026-78399 is a medium-severity vulnerability in IBM Security Verify Access, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2026-10-08.
How severe is CVE-2026-78399?: Medium severity. CVSS v3 base score is 6.5 out of 10.