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CVE-2026-10109

IBM Db2 remote code execution

9.8 CRITICALEPSS 0.86%
  1. Published30 Jun 2026

Description

IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.4 is vulnerable to remote code execution due to improper pre-auth DRDA handshake handling.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

IBM Db2≥ 11.5.0 ≤ 11.5.9 · ≥ 12.1.0 ≤ 12.1.4

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2026-10109 being actively exploited?

CVE-2026-10109 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.86%.

How severe is CVE-2026-10109?

CVE-2026-10109 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.86% probability of exploitation.

Which products are affected by CVE-2026-10109?

Affected products include IBM Db2.

How do I fix CVE-2026-10109?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-10109 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.