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Security Verify Access EUVDEUVD-2026-95269

| CVE-2026-78406 CRITICAL
Deserialization of Untrusted Data (CWE-502)
2026-10-08 ibm GHSA-whg2-2h76-8mr5
9.8
CVSS 3.1 · NVD
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Severity by source

Vendor (ibm) PRIMARY
CRITICAL
qualitative
NVD
9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vuln.today AI
9.8 CRITICAL

Description states remote unauthenticated code execution via untrusted deserialization, giving AV:N/AC:L/PR:N/UI:N and full C/I/A impact on the host (S:U).

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (ibm).

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Oct 08, 2026 - 21:36 vuln.today
CVE Published
Oct 08, 2026 - 21:02 nvd
CRITICAL 9.8

DescriptionNVD

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 unauthenticated attacker to execute arbitrary code on the system due to the deserialization of untrusted data.

AnalysisAI

Remote code execution is achievable in IBM Security Verify Access 10.0 through 10.0.9.2 and IBM Verify Identity Access 11.0 through 11.0.3, including their container editions, because the affected services deserialize untrusted data received over the network. The flaw is reachable without authentication and without user interaction (CVSS 3.1 base 9.8, AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), allowing an attacker who can reach the vulnerable endpoint to run arbitrary code with the privileges of the affected process. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
technique details hidden
Delivery
technique details hidden
Exploit
technique details hidden
Execution
technique details hidden
Impact
technique details hidden

Vulnerability AssessmentAI

Exploitation The flaw is reached whenever an affected IBM Security Verify Access (10.0 through 10.0.9.2) or IBM Verify Identity Access (11.0 through 11.0.3) instance - including the container editions - exposes the vulnerable service that deserializes attacker-supplied data to the network. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment This is a genuine high-priority vulnerability. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Patch status: Patch available per vendor advisory - IBM has published remediation for both affected product lines at https://www.ibm.com/support/pages/node/7291628, which lists the fixed releases and any interim fixes for Security Verify Access 10.x and Verify Identity Access 11.x, including their container editions; apply the current fix level for your branch rather than the specific versions quoted in this CVE description, and rebuild container images from the patched base so the fix is not lost on redeploy. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, inventory every deployment of IBM Security Verify Access 10.0 through 10.0.9.2 and IBM Verify Identity Access 11.0 through 11.0.3, including all container editions and derived images, and restrict network reachability of the affected service so that only trusted management hosts and required clients can connect - prioritizing any internet-facing or partner-exposed instances - while enabling detailed logging to detect anomalous deserialization traffic. …

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Threat intelligence, references, and detailed analysis are available after sign-in.

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EUVD-2026-95269 vulnerability details – vuln.today

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