What is 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
The record classifies CVE-2026-78399 under weakness class CWE-770. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs low-privilege credentials, needs no user interaction, and has high impact on availability. 4 affected-product entries are recorded, across 1 vendor, listed below. The identifier was first published 4 days ago.
Severity and exploitation probability
- CVSS v3.1 base score
- 6.5 — MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS (FIRST)
- 0.2% probability of exploitation in the next 30 days, higher than 17.7% of all scored CVEs
- CISA KEV
- Not listed in the CISA Known Exploited Vulnerabilities catalog
- Threadlinqs priority
- 4/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- Published
- 2026-10-08
Is CVE-2026-78399 being exploited?
It currently carries a trending score of 38 in the Threadlinqs vulnerability feed.
Affected products and versions
- IBM: Security Verify Access, Verify Identity Access, Security Verify Access Container, Verify Identity Access Container
How to fix CVE-2026-78399
No vendor patch reference has been recorded for CVE-2026-78399 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.
Threat activity tracking CVE-2026-78399
1 tracked threat in the Threadlinqs corpus references CVE-2026-78399, either in the campaign’s CVE list or as an indicator on the campaign record.
Sources
Enriched from CVE.org, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on .