CVE-2026-82335

Summary

A heap-based buffer overflow exists in IBM Guardium Data Protection's MongoDB protocol parser that can be triggered by sending a malformed SCRAM username with excessive length. This vulnerability allows remote attackers to cause memory corruption potentially leading to denial of service or arbitrary code execution.

Exploitability

Exploitation requires sending a specially crafted MongoDB SCRAM username with an excessive length to trigger the buffer overflow, which is moderately difficult without public exploit code but possible for determined attackers.

Blast radius

If exploited, this vulnerability could impact all systems running IBM Guardium Data Protection 12.0, 12.1, or 12.2 that accept MongoDB connections, potentially causing widespread service disruption or unauthorized code execution across protected databases.

Detection

No reliable host or network indicator is derivable from the published description.

Prioritized remediation

Upgrade to IBM Guardium Data Protection 12.3 or later to remediate this vulnerability.

Analysis generated locally by garnet-coder (no data left the box). AI-assisted — verify against primary sources before acting.