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9.8

CVE-2026-81657: IBM Guardium Data Protection can be hijacked remotely

CVE-2026-81657 · published 24 days ago
Summary

Version 12.2 of IBM Guardium Data Protection can let an attacker who is not logged in run their own code on the server by sending specially crafted data. This could lead to loss of control over the system and exposure of sensitive information. Apply the latest security updates from IBM as soon as possible and restrict network access to the Guardium service.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
ibm guardium data protection 12.2
Original advisory text
IBM Guardium Data Protection is affected by multiple vulnerabilities.
IBM Guardium Data Protection 12.2 could allow a remote unauthenticated attacker to execute arbitrary code on the system due to the deserialization of untrusted data.
Fix within
Internet-facing 3 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically
  • Gives an attacker full control
Severity
9.8 Critical
Exploitation
<1% chance of attack within 30 days
Type
CWE-502Deserialization of Untrusted Data
Timeline
Published18 Sep 2026
Updated12 Oct 2026
First seen18 Sep 2026
Sources
CVE-2026-81657 · MITRE
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