CVE-2026-84271

Analyzed Analyzed - Analysis Complete

Signature Verification Bypass in IBM Guardium Data Protection

Publication date: 2026-10-08

Last updated on: 2026-10-09

Assigner: IBM Corporation

Description

IBM Guardium Data Protection 12.2 is vulnerable to a signature verification bypass in the patch installer. An attacker with local access could exploit this vulnerability to execute arbitrary code with root privileges.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-10-08

Last Modified

2026-10-09

Generated

2026-10-19

AI Q&A

2026-10-08

EPSS Evaluated

2026-10-18

NVD

CVE-2026-84271

EUVD

EUVD-2026-95240

Affected Vendors & Products

Vendor	Product	Version / Range
ibm	guardium_data_protection	12.2

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-362	The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
CWE-347	The product does not verify, or incorrectly verifies, the cryptographic signature for data.

Attack-Flow Graph

Executive Summary

IBM Guardium Data Protection 12.2 has a flaw in its patch installer where signature verification can be bypassed. This allows an attacker with local access to run arbitrary code with root privileges.

Detection Guidance

Since this vulnerability involves a signature verification bypass in IBM Guardium Data Protection 12.2, detection requires checking for unauthorized modifications or patches. Inspect the patch installer files for unexpected signatures or altered binaries. Compare installed versions against official IBM releases. Check system logs for unusual privilege escalation events.

Impact Analysis

If exploited, an attacker could gain full control over the affected system, leading to unauthorized data access, modification, or system compromise. This is especially critical for systems handling sensitive data.

Compliance Impact

This vulnerability could lead to unauthorized access or data breaches, violating GDPR and HIPAA requirements for data protection and access control. Non-compliance may result in legal penalties and reputational damage.

Mitigation Strategies

Apply the latest IBM Guardium Data Protection patch immediately to fix the signature verification bypass. Ensure only trusted users have local access to systems running IBM Guardium Data Protection 12.2.

Hi! I’m here to help you understand CVE-2026-84271. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70