CVE-2026-82335: IBM Guardium Data Protection

Critical severity, CVSS 9.8. EPSS: 0.4% chance of exploitation in the next 30 days.

IBM Guardium Data Protection 12.0, 12.1, 12.2 is vulnerable to a heap-based buffer overflow in the MongoDB protocol parser. A remote attacker could send a specially crafted MongoDB SCRAM username containing an excessive length and cause memory corruption, potentially resulting in denial of service or arbitrary code execution.

Affected products

• IBM Guardium Data Protection: version 12.0 only; version 12.1 only; version 12.2 only

Published 2026-10-08. Last modified 2026-10-10.