CVE-2026-104364
Received Received - Intake

Denial of Service in IBM Db2 due to Improper Input Validation

Publication date: 2026-10-12

Last updated on: 2026-10-12

Assigner: IBM Corporation

Description
IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 could allow a local attacker to cause a denial of service due to improper input validation.

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Meta Information

Published
2026-10-12
Last Modified
2026-10-12
Generated
2026-10-13
AI Q&A
2026-10-12
EPSS Evaluated
N/A
NVD
CVE-2026-104364
EUVD
EUVD-2026-97813

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
IBM Db2 11.5.0
IBM Db2 12.1.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-20 The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

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Executive Summary

IBM Db2 versions 11.5.0 through 11.5.9 and 12.1.0 through 12.1.5 are vulnerable to a denial of service attack due to improper input validation. This flaw allows a local attacker to disrupt service by exploiting weak input checks.

Impact Analysis

The vulnerability could allow a local attacker to cause a denial of service, disrupting database operations. This may lead to system unavailability, data access issues, or degraded performance for users relying on the affected Db2 instances.

Mitigation Strategies

Apply the security updates released by IBM for Db2 versions 11.5.9, 12.1.4, and 12.1.5 via Fix Central. Since no workarounds are provided, updating is the only recommended mitigation.

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