What is CVE-2026-12109?
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 attacker with administrative privileges and access to the local management interface to execute arbitrary code due to an unbounded write to a fixed-size stack buffer.
The record classifies CVE-2026-12109 under weakness class CWE-787. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs high-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
- 5.5 — MEDIUM
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:H - EPSS (FIRST)
- 0.2% probability of exploitation in the next 30 days, higher than 10.3% of all scored CVEs
- CISA KEV
- Not listed in the CISA Known Exploited Vulnerabilities catalog
- Threadlinqs priority
- 3.2/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- Published
- 2026-10-08, last modified 2026-10-10
Is CVE-2026-12109 being exploited?
It currently carries a trending score of 37 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-2026-12109
No vendor patch reference has been recorded for CVE-2026-12109 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-2026-12109
1 tracked threat in the Threadlinqs corpus references CVE-2026-12109, 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 .