CVE-2026-104364
Awaiting Analysis Awaiting Analysis - Queue

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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-10-12
Last Modified
2026-10-12
Generated
2026-10-19
AI Q&A
2026-10-12
EPSS Evaluated
2026-10-18
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
CWE Icon
KEV
KEV Icon
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.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
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.

Detection Guidance

Detection involves checking installed Db2 versions against affected ranges (11.5.0-11.5.9, 12.1.0-12.1.5) and applying IBM's security updates. No specific commands are provided in the resources due to IBM's policy on not disclosing exploitation steps.

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.

Compliance Impact

This vulnerability, a denial of service issue due to improper input validation, could potentially impact compliance with standards like GDPR or HIPAA by disrupting the availability of data processing systems. Denial of service conditions may lead to unauthorized disruptions in data access or processing, which could violate requirements for data availability and integrity under these regulations.

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.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-104364. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart