CVE-2026-84058 PUBLISHED

Multiple vulnerabilities affect the Sniffer component as part of IBM Guardium Data Protection

Assigner: ibm
Reserved: 01.09.2026 Published: 08.10.2026 Updated: 09.10.2026

IBM Guardium Data Protection 12.0, 12.1, and 12.2 is vulnerable to a buffer overrun in the TDS (Microsoft SQL Server) PRELOGIN packet decoder. A remote attacker who can send a specially crafted TDS PRELOGIN packet to a network monitored by an IBM Guardium Collector may cause a denial of service or potentially execute arbitrary code on the Collector appliance.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 8.1

Attack Vector	Network	Scope	Unchanged
Attack Complexity	High	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	IBM
Product	Guardium Data Protection
Versions	Version 12.0 is affected Version 12.1 is affected Version 12.2 is affected

Solutions

For all affected versions, IBM strongly recommends addressing these vulnerabilities now by applying the latest IBM Guardium Data Protection Sniffer patch:

https://www.ibm.com/support/fixcentral/swg/quickorder?parent=IBM%20Security&product=ibm/Information+Management/InfoSphere+Guardium&release=12.2&platform=All&function=fixId&fixids=SqlGuard_12.0p4018_SnifferUpdate&includeSupersedes=0&source=fc

References

https://www.ibm.com/support/pages/node/7291674

Problem Types

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer CWE