CVE-2026-82340
9.8 · CRITICALIBM Guardium Data Protection 12.2 is vulnerable to unauthenticated insecure deserialization and attacker-controlled reflective method dispatch in the Change Audit System (CAS) listener.
Overview
CVE-2026-82340 is a critical-severity vulnerability affecting ibm guardium_data_protection. It was published on September 18, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical description
IBM Guardium Data Protection 12.2 is vulnerable to unauthenticated insecure deserialization and attacker-controlled reflective method dispatch in the Change Audit System (CAS) listener. A network attacker able to reach TCP port 16017 may submit crafted serialized messages and potentially cause unintended code execution in the Guardium appliance.
Remediation
Check the references section for vendor advisories and patches from ibm. Update guardium_data_protection to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected products
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References
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Frequently asked questions
What is CVE-2026-82340?
CVE-2026-82340 is a critical-severity vulnerability affecting ibm guardium_data_protection. It was published on September 18, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2026-82340?
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-82340?
Check the references section for vendor advisories and patches from ibm. Update guardium_data_protection to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-82340?
CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-82340 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.
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