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IBM's security bulletin confirms CVE-2026-84436 command injection in Guardium 12.2 certificate export CLI, allowing root command execution by privileged users (CVSS 9.1).

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Home/Tech/Critical Command Injection Flaw in IBM Guardium 12.2
VERIFIEDBy Xavier Rivera·Tuesday, September 29, 2026 at 2:38 PM EDT·1 min read

Critical Command Injection Flaw in IBM Guardium 12.2

Version 12.2 of IBM Guardium Data Protection carries the critical CVE-2026-84436 flaw scoring 9.1 on CVSS. Command injection in the certificate export CLI lets a privileged user execute commands as root.

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Critical Command Injection Flaw in IBM Guardium 12.2
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TL;DRAI · 60 sec read

IBM Guardium Data Protection version 12.2 has a critical command injection flaw identified as CVE-2026-84436. The weakness resides in the CLI component for certificate exports and enables an authenticated user holding privileges to execute any desired commands at root level. NVD rates it critical with a CVSS 3.1 score of 9.1.

IBM Guardium Data Protection version 12.2 has been assigned the identifier CVE-2026-84436 for a serious security issue.
The flaw allows root-level command execution.
The flaw allows root-level command execution. An injection weakness exists in the CLI component responsible for certificate exports. This setup lets an authenticated CLI user who holds privileges run any commands desired under root access.
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CVSS score rates the vulnerability as critical. A base score of 9.1 was assigned under CVSS version 3.1. The associated vector reads CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H, which reflects a network-based vector, low complexity, required high privileges, absence of user interaction, scope change, plus high effects across confidentiality, integrity and availability.
This setup lets an authenticated CLI user who holds privileges run any commands desired under root access.
NVD classifies the issue under its critical severity bucket. Only the 12.2 release of the product appears in the record.
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IBM has published supporting details. Details are available via the link https://www.ibm.com/support/pages/node/7288040.
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