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CVE-2026-84246 – Remote Code Execution (Buffer Overflow) – IBM Guardium Data Protection 12.0, 12.1 a

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Summary

CVE-2026-84246 is a classic buffer overflow vulnerability (CWE-120) in IBM Guardium Data Protection 12.0, 12.1, and 12.2. It could allow a remote attacker to execute arbitrary code. The CVSS v3.1 base score is 8.1 (High).

Technical details

  • Root cause: buffer copy without checking the size of the input (CWE-120, classic buffer overflow).
  • Trigger conditions: the CVSS vector indicates high attack complexity, with no privileges and no user interaction required.
  • Attack vector: network.
  • Impact: a remote attacker could execute arbitrary code, with high impact on confidentiality, integrity, and availability.

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)
  • Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Mitigation and recommended actions

  • Immediate: IBM recommends applying the latest IBM Guardium Data Protection Sniffer patch (for example, SqlGuard_12.0p4018_SnifferUpdate) from IBM Fix Central, as described in the IBM security bulletin.
  • Workarounds: the IBM bulletin lists none. Until the patch is applied, limit network exposure of Guardium Data Protection systems to trusted networks only.

References

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