IBM® Db2® is vulnerable to remote code execution due to improper pre-auth DRDA handshake handling
Published Jun 30, 2026
9.8
CRITICALCVSS 3.1
EPSS 0.86%
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.
Affected products
-
- Version 11.5.0StatusaffectedConstraints<=11.5.9
- Version 12.1.0StatusaffectedConstraints<=12.1.4
- Version
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Vendor solution
Customers running any vulnerable affected level of an affected Program, V11.5, and V12.1, can download the special build containing the interim fix for this issue from Fix Central. These special builds are available based on the most recent level for each impacted release:V11.5.9, and V12.1.4. They can be applied to any affected level of the appropriate release to remediate this vulnerability.
ReleaseFixed in mod packAPARDownload URLV11.5TBD https://www.ibm.com/support/pages/node/7087189
V12.1
TBD
https://www.ibm.com/support/pages/node/7267513
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.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
YesTechnical Impact
TotalDecision
n/aAssessed Jul 1, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
Jul–Oct 2026- EPSS v5
Percentile over time
- EPSS v5
Table of values (2 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.86% (0.00860) | 57.02th | v5 (v2026.06.15) |
| Jul 1, 2026 | 0.86% (0.00860) | 53.99th | v5 (v2026.06.15) |
References (1)
- https://www.ibm.com/support/pages/node/7277424 vendor-advisorypatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://www.ibm.com/support/pages/node/7277424 | vendor-advisorypatchVendor Advisory |
Change history (0)
No recorded changes yet.