CVE-2026-1577
Modified Modified - Updated After Analysis
IBM Db2 Denial of Service Vulnerability

Publication date: 2026-04-30

Last updated on: 2026-05-10

Assigner: IBM Corporation

Description
IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.4 for Linux, UNIX and Windows (includes Db2 Connect Server) could allow an authenticated user to cause a denial of service due to improper neutralization of special elements in data query logic.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-04-30
Last Modified
2026-05-10
Generated
2026-06-16
AI Q&A
2026-05-01
EPSS Evaluated
2026-06-14
NVD
CVE-2026-1577
Affected Vendors & Products
Showing 6 associated CPEs
Vendor Product Version / Range
ibm db2 From 11.5.0 (inc) to 11.5.9 (inc)
ibm db2 From 11.5.0 (inc) to 11.5.9 (inc)
ibm db2 From 11.5.0 (inc) to 11.5.9 (inc)
ibm db2 From 12.1.0 (inc) to 12.1.4 (inc)
ibm db2 From 12.1.0 (inc) to 12.1.4 (inc)
ibm db2 From 12.1.0 (inc) to 12.1.4 (inc)
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-1284 The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties.
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

This vulnerability affects IBM Db2 versions 11.5.0 through 11.5.9 and 12.1.0 through 12.1.4 on Linux, UNIX, and Windows platforms, including Db2 Connect Server. It allows an authenticated user to cause a denial of service by exploiting improper neutralization of special elements in the data query logic.

Impact Analysis

The vulnerability can lead to a denial of service condition, meaning that an authenticated user could disrupt the normal operation of the IBM Db2 database system, potentially causing downtime or unavailability of database services.

Compliance Impact

The provided information does not specify how this vulnerability impacts compliance with common standards and regulations such as GDPR or HIPAA.

Detection Guidance

IBM does not disclose replication steps or exploit methods to prevent misuse of the vulnerability information.

No specific detection commands or methods are provided to identify this vulnerability on your network or system.

Mitigation Strategies

To mitigate this vulnerability, customers are advised to download and install the interim fixes released by IBM for affected versions.

  • Apply the special builds for Db2 versions 11.5.9 and 12.1.4 available from IBM Fix Central.

No official workarounds are provided to avoid exposing details that could aid potential attackers.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-1577. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart