CVE-2026-12109
MediumCVSS 5.5Exploitation Probability (EPSS)
Low risk10th percentile - higher than 10% of all known CVEs
Summary
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.
Risk Assessment
An attacker with administrative privileges can exploit the stack buffer overflow to execute arbitrary code, potentially leading to full compromise of the authentication system.
Recommendation
Restrict access to the local management interface to trusted administrators only and promptly install the vendor patch.
Other vulnerabilities in IBM Security Verify Access
See all- CVE-2026-78406Critical
IBM Security Verify Access 10.0 through 10.0.9.2 and IBM Verify Identity Access 11.0 through 11.0.3 are vulnerable to remote code execution by an unauthenticated attacker due to deserialization of untrusted data.
- CVE-2026-78401Critical
IBM Security Verify Access 10.0 through 10.0.9.2 and IBM Verify Identity Access 11.0 through 11.0.3 are vulnerable to remote code execution by an unauthenticated attacker due to deserialization of untrusted data.
- CVE-2026-19491Critical
IBM Security Verify Access 10.0 through 10.0.9.2 and IBM Verify Identity Access 11.0 through 11.0.3 could allow a remote attacker to bypass authentication due to improper authentication.
- CVE-2026-16916Critical
IBM Security Verify Access 10.0 through 10.0.9.2 and IBM Verify Identity Access 11.0 through 11.0.3 could allow a remote authenticated attacker to execute arbitrary code due to a protection mechanism failure.
- CVE-2026-16823Critical
IBM Security Verify Access 10.0 through 10.0.9.2 and IBM Verify Identity Access 11.0 through 11.0.3 could allow a remote attacker to bypass security restrictions due to improper authentication.
- CVE-2026-78407Medium
IBM Security Verify Access 10.0 through 10.0.9.2 and IBM Verify Identity Access 11.0 through 11.0.3 are vulnerable to cross-site scripting. This vulnerability allows an authenticated user to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session.
- CVE-2026-78399Medium
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.
- CVE-2026-78388Medium
IBM Security Verify Access 10.0 through 10.0.9.2 and IBM Verify Identity Access 11.0 through 11.0.3 is vulnerable to cross-site request forgery which could allow an attacker to execute malicious and unauthorized actions transmitted from a user that the website trusts.
- CVE-2026-19878Medium
IBM Security Verify Access 10.0 through 10.0.9.2 and IBM Verify Identity Access 11.0 through 11.0.3 could allow a remote authenticated attacker to bypass additional authentication workflow steps.
- CVE-2026-19498Medium
IBM Security Verify Access 10.0 through 10.0.9.2 and IBM Verify Identity Access 11.0 through 11.0.3 could allow a remote attacker to cause a denial of service due to uncontrolled recursion.
Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

