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7.5 High

CVE-2026-86093 IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 could allow an attacker with the ability to control or…

Description

IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 could allow an attacker with the ability to control or impersonate a DRDA server endpoint to execute arbitrary commands on Db2 clients due to a stack-based buffer overflow that improperly copies user-controlled data into a fixed-size stack buffer without bounds checking.

Affected products and versions

Product Affected versions Fixed in
DB2 12.1 12.1.0 → 12.1.5 No fix stated
DB2 11.5 11.5.0 → 11.5.9 No fix stated

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