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CVE-2026-16702— IBM® Db2® federated server could allow a remote authenticated attacker to cause a denial of service due to a null pointer dereference

Quick assessment

Affected
IBM Db2
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

IBM Db2 11.5.0 至 11.5.9 以及 Linux、UNIX 和 Windows 平台上的 12.1.0 至 12.1.5（包括 DB2 Connect Server）版本中，由于存在空指针解引用（null pointer dereference）缺陷，可能允许远程认证攻击者引发拒绝服务（Denial of Service）问题。

CVSS 6.5 · Medium
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I. Basic Information for CVE-2026-16702

Vulnerability Information
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Vulnerability Title
IBM® Db2® federated server could allow a remote authenticated attacker to cause a denial of service due to a null pointer dereference
Source: CVE Program / CVE List V5
Vulnerability Description
IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 for Linux, UNIX and Windows (includes DB2 Connect Server) could allow a remote authenticated attacker to cause a denial of service due to a null pointer dereference.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
IBM Db2 11.5.0 ~ 11.5.9 cpe:2.3:a:ibm:db2:11.5.0:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-16702

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III. Intelligence Information for CVE-2026-16702

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Other References for CVE-2026-16702 (1)

Same Patch Batch · IBM · 2026-09-14 · 61 CVEs total

CVE-2026-16338 9.9 CRITICAL DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-12944 9.6 CRITICAL Incomplete Security Scanner Blocklist Enables Network-Based Code Execution
CVE-2026-16428 8.8 HIGH DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-16466 8.8 HIGH DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-13293 8.8 HIGH IBM MQ Java messaging is vulnerable to remote code execution
CVE-2026-16673 8.8 HIGH DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-17467 8.2 HIGH Vulnerabilities exists in IBM Cloud Pak for Data System
CVE-2026-16335 8.1 HIGH DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-17416 7.8 HIGH IBM App Connect Enterprise Toolkit is vulnerable to arbitrary code execution due to multip
CVE-2026-17156 7.8 HIGH IBM App Connect Enterprise Toolkit is vulnerable to arbitrary code execution due to multip
CVE-2026-17133 7.8 HIGH IBM App Connect Enterprise Toolkit is vulnerable to arbitrary code execution due to multip
CVE-2026-16432 7.7 HIGH DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-15955 7.5 HIGH IBM® Data Server driver for JDBC and SQLJ could allow a remote attacker to perform an arbi
CVE-2026-19290 7.5 HIGH IBM Sterling File Gateway is Vulnerable to Improper Access Control
CVE-2026-13107 7.1 HIGH Multiple secuirty vulnerabilies addressed with IBM Business Automation Workflow August 202
CVE-2026-13275 7.1 HIGH IBM MQ Managed File Transfer is vulnerable to XML external entity injection
CVE-2026-12756 7.1 HIGH Multiple secuirty vulnerabilies addressed with IBM Business Automation Workflow August 202
CVE-2026-13287 7.1 HIGH IBM MQ Managed File Transfer is vulnerable to XML external entity injection
CVE-2026-13285 7.1 HIGH IBM MQ Managed File Transfer is vulnerable to XML external entity injection
CVE-2026-13265 6.8 MEDIUM IBM MQ Managed File Transfer REST API is vulnerable to XML external entity injection

Showing top 20 of 61 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Db2
Same vendor: IBM
Same weakness: CWE-476

V. Comments for CVE-2026-16702

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