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CVE-2026-84035 – Remote Code Execution (Stack-based Buffer Overflow) – IBM Guardium Data Protection

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Summary

CVE-2026-84035 is a stack-based buffer overflow (CWE-121) in IBM Guardium Data Protection versions 12.0, 12.1 and 12.2. A remote attacker could exploit it to execute arbitrary code. It is rated High severity (CVSS v3.1 8.1).

Technical details

  • Root cause: stack-based buffer overflow (CWE-121) in IBM Guardium Data Protection. IBM’s remediation is delivered as a Sniffer patch.
  • Trigger conditions: the CVSS vector rates attack complexity as High. No privileges or user interaction are required.
  • Attack vector: network.
  • Impact: remote arbitrary code execution. The vector rates confidentiality, integrity and availability impact as High.

Affected software

  • IBM Guardium Data Protection 12.0
  • IBM Guardium Data Protection 12.1
  • IBM Guardium Data Protection 12.2

Severity

CVSS v3.1 base score 8.1 (High): CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Mitigation and recommended actions

  • Immediate: apply the latest Guardium Data Protection Sniffer patch from IBM Fix Central. IBM’s bulletin references SqlGuard_12.0p4018_SnifferUpdate.
  • Workarounds: IBM’s bulletin documents none. As general hardening, restrict network access to Guardium systems to trusted networks only.

References

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