Vulnerability Details 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 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.005
EPSS Ranking 39.7%
CVSS Severity
CVSS v3 Score 7.5
Products affected by CVE-2026-86093
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cpe:2.3:a:ibm:db2:11.5
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cpe:2.3:a:ibm:db2:11.5.0
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cpe:2.3:a:ibm:db2:11.5.5.0
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cpe:2.3:a:ibm:db2:11.5.6
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cpe:2.3:a:ibm:db2:11.5.8
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cpe:2.3:a:ibm:db2:11.5.9
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cpe:2.3:a:ibm:db2:12.1.0
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cpe:2.3:a:ibm:db2:12.1.1
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cpe:2.3:a:ibm:db2:12.1.2