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CVE-2026-18166

IBM® Db2® is vulnerable to arbitrary library loading via the CREATE WRAPPER command, allowing a privileged database user to read sensitive files from the host filesystem

High7.7EPSS 0.25%
Published
Updated
Reserved
Assigned by
ibm

Description

IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 for Linux, UNIX and Windows (includes DB2 Connect Server) could allow a remote authenticated attacker to obtain sensitive information due to improper authorization when using the CREATE WRAPPER command.

Scores

CVSS scores of CVE-2026-18166, by who scored it
Scored byCVSSScoreVector
ibmCNA (assigner)3.1High7.7CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
NVDNVD · Awaiting Analysis3.1High7.7CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
EPSS (exploitation in 30 days)
0.25% · top 84% of all CVEs (6 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.7.

Weakness

Affected products

  • IBM · Db2

    • affected 11.5.0 – ≤ 11.5.9
    • affected 12.1.0 – ≤ 12.1.5

What to do

Solution: Customers running any vulnerable affected level of an affected Program, V11.5, and V12.1, can download the security update containing the interim fix for this issue from Fix Central. These security updates are available based on the most recent level for each impacted release: V11.5.9, V12.1.4, and V12.1.5. They can be applied to any affected level of the appropriate release to remediate this vulnerability. ReleaseFixed in mod packAPARDownload URLV11.5TBDDT474166Security Update #94236 or later for V11.5.9 available at this link: https://www.ibm.com/support/pages/node/7087189V12.1TBDDT474166Security Update #94722 or later for V12.1.4 available at this link: https://www.ibm.com/support/pages/node/7267513 Security Update #94858 or later for V12.1.5 available at this link: https://www.ibm.com/support/pages/node/7282633 IBM does not disclose key Db2 functionality nor replication steps for a vulnerability to avoid providing too much information to any potential malicious attacker. IBM does not want to enable a malicious attacker with sufficient knowledge to craft an exploit of the vulnerability.

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .