Vulnerability · Published Sep 14, 2026 · Assigned by ibm

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

Medium 6.2

In plain English

A medium-severity improper input validation in Common Licensing from IBM. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities).

Severity (CVSS 3.1)6.2Medium

Exploit odds (30 days)0.2%top 93.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
IBM	Common Licensing	Agent 9.0Agent 9.0.0.1Agent 9.0.0.2ART 9.0ART 9.0.0.1ART 9.0.0.2

Weakness: CWE-20 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

https://www.ibm.com/support/pages/node/7286490 vendor-advisory, patch