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CVE-2026-87958— IBM® Db2® is vulnerable to a denial of service where a specific functionality on a Db2 server can be disabled by a privileged user under certain conditions

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是美国IBM公司的一款企业级关系型数据库管理系统。 IBM DB2 11.5.0版本至11.5.9版本和12.1.0版本至12.1.5版本存在权限许可和访问控制问题漏洞，该漏洞源于Db2服务器上的特定功能在特定条件下可被特权用户禁用，可能导致拒绝服务。

CVSS 8.1 · High EPSS 0.38% · P32

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 2

VendorProduct Version RangeStatus
IBM Db2 11.5.0≤ 11.5.9 affected
12.1.0≤ 12.1.5 affected
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I. Basic Information for CVE-2026-87958

Vulnerability Information
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Vulnerability Title
IBM® Db2® is vulnerable to a denial of service where a specific functionality on a Db2 server can be disabled by a privileged user under certain conditions
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 is vulnerable to a denial of service where a specific functionality on a Db2 server can be disabled by a privileged user under certain conditions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
IBM DB2 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
IBM DB2是美国IBM公司的一款企业级关系型数据库管理系统。 IBM DB2 11.5.0版本至11.5.9版本和12.1.0版本至12.1.5版本存在权限许可和访问控制问题漏洞，该漏洞源于Db2服务器上的特定功能在特定条件下可被特权用户禁用，可能导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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-2026-87958

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III. Intelligence Information for CVE-2026-87958

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Other References for CVE-2026-87958 (1)

Same Patch Batch · IBM · 2026-09-10 · 49 CVEs total

CVE-2026-81204 9.8 CRITICAL Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit
CVE-2026-79724 9.8 CRITICAL Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit
CVE-2026-85025 9.8 CRITICAL Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit
CVE-2026-78573 9.8 CRITICAL IBM ContextForge MCP Gateway is affected by use of default credentials
CVE-2026-82107 9.6 CRITICAL DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-82100 9.6 CRITICAL DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-80424 9.1 CRITICAL DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-19646 9.1 CRITICAL Multiple vulnerabilities affect IBM License Key Server Administration and Reporting Tool a
CVE-2026-81211 8.8 HIGH Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit
CVE-2026-81941 8.8 HIGH Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit
CVE-2026-81554 8.8 HIGH DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-81550 8.8 HIGH DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-81551 8.8 HIGH DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-82095 8.8 HIGH DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-82099 8.8 HIGH DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-82098 8.8 HIGH DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-82097 8.8 HIGH DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-78569 8.8 HIGH Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit
CVE-2026-82092 8.8 HIGH DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-81940 8.8 HIGH Langflow is vulnerable to arbitrary code execution due to multiple incomplete code securit

Showing top 20 of 49 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Db2
Same vendor: IBM
Same weakness: CWE-269