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CVE-2026-19543— Multiple vulnerabilities affect IBM License Key Server Administration and Reporting Tool and IBM LKS Administration Agent

Quick assessment

Affected
IBM Common Licensing
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 Common Licensing Agent 9.0、Agent 9.0.0.1、Agent 9.0.0.2、ART 9.0、ART 9.0.0.1 和 ART 9.0.0.2 仅在客户端执行输入验证，而未在服务器端强制执行相同的限制。攻击者可以修改请求以绕过验证控制，并提交未授权的值，从而导致非预期的应用程序行为。

CVSS 6.2 · Medium

Possible ATT&CK Techniques 1 AI

T1210 · Exploitation of Remote Services

Affected Version Matrix 6

VendorProduct Version RangeStatus
IBM Common Licensing Agent 9.0 affected
Agent 9.0.0.1 affected
Agent 9.0.0.2 affected
ART 9.0 affected
ART 9.0.0.1 affected
ART 9.0.0.2 affected
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I. Basic Information for CVE-2026-19543

Vulnerability Information
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Vulnerability Title
Multiple vulnerabilities affect IBM License Key Server Administration and Reporting Tool and IBM LKS Administration Agent
Source: CVE Program / CVE List V5
Vulnerability Description
IBM Common Licensing Agent 9.0, Agent 9.0.0.1, Agent 9.0.0.2, ART 9.0, ART 9.0.0.1, and ART 9.0.0.2 performs input validation exclusively on the client side and fails to enforce the same restrictions on the server side. An attacker can modify requests to bypass validation controls and submit unauthorized values, potentially resulting in unintended application behavior.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
IBM Common Licensing Agent 9.0 cpe:2.3:a:ibm:common_licensing:agent:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-19543

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III. Intelligence Information for CVE-2026-19543

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Vendor Advisories for CVE-2026-19543 (1)

Same Patch Batch · IBM · 2026-09-14 · 39 CVEs total

CVE-2026-16338 9.9 CRITICAL DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
CVE-2026-16673 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-2026-16428 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-2026-13107 7.1 HIGH Multiple secuirty vulnerabilies addressed with IBM Business Automation Workflow August 202
CVE-2026-53708 6.6 MEDIUM ContextForge: DNS TOCTOU race condition causes SSRF protection bypass (`/admin/gateways/te
CVE-2026-16187 6.5 MEDIUM IBM WebSphere Application Server prior to 9.0.5.29 and 8.5.5.31 are affected by multiple v
CVE-2026-12767 6.5 MEDIUM Langflow is vulnerable to server-side request forgery due to missing egress validation on
CVE-2026-17463 6.5 MEDIUM IBM® Db2® could allow a remote authenticated attacker to cause a denial of service due to
CVE-2026-16702 6.5 MEDIUM IBM® Db2® federated server could allow a remote authenticated attacker to cause a denial o
CVE-2026-15396 6.5 MEDIUM IBM WebSphere Application Server prior to 9.0.5.29 and 8.5.5.31 are affected by multiple v
CVE-2026-15412 6.5 MEDIUM IBM WebSphere Application Server prior to 9.0.5.29 and 8.5.5.31 are affected by multiple v
CVE-2026-15634 6.5 MEDIUM IBM WebSphere Application Server prior to 9.0.5.29 and 8.5.5.31 are affected by multiple v

Showing top 20 of 39 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Common Licensing
Same vendor: IBM
Same weakness: CWE-20

V. Comments for CVE-2026-19543

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