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    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.

    Published:Sep 10, 2026
    Last Modified:Sep 10, 2026
    EPS:Sep 10, 2026
    EPSS Score:
    CVSS Score:7.5

    Affected Products

    Vendor
    Ibm
    Product
    Db2

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-121 Stack-based Buffer Overflow

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-16480 (CVSS 4.3) — IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 is affected by an improper authorization vulnerabilit…
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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High