IBM Guardium Data Protection 12.2 Patches 18 CVEs Including 10 Critical Flaws

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IBM Guardium Data Protection version 12.2 is affected by a group of over 20 vulnerabilities disclosed together in September 2026, comprising 18 CVEs with 10 rated Critical and 7 rated High. Among them, CVE-2026-81657 carries a severity score of 9.8 and involves an insecure deserialization flaw in the Change Audit System listener on TCP port 16017, allowing unauthenticated remote attackers to potentially execute arbitrary code. The vulnerabilities affect core data protection components, load balancers, and administrative web interfaces across the Guardium product family. IBM has released patches and is urging customers to apply them promptly, recommending a single consolidated update pass given the batch nature of the disclosures. Until patching is complete, administrators are advised to restrict access to TCP port 16017, limit management interface exposure to trusted hosts, and review authentication logs for suspicious activity.

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