Assessment
Why it matters
EPSS is 0.4%; technical severity is CVSS 9.8.
IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 is vulnerable to buffer overflow in the IXF IMPORT parser.
Who should care
- Teams operating Db2
- Vulnerability and exposure management teams
- Security operations teams monitoring exploitation activity
Response plan
What I would do
- Confirm whether Db2 is present in the environment.
- Identify affected versions and establish whether vulnerable services are exposed or reachable.
- IBM Security advisory 7279461
- Review relevant security telemetry for evidence of attempted or successful exploitation.
- Document the remediation decision and track it to verified completion.
Treatment intelligence
Remediation intelligence
Vendor sources are listed before government and third-party guidance. Confirm product applicability and change prerequisites before deployment.
Verification noteAutomated link verification has not completed for this guidance yet.
Technical details
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CWE
- CWE-121
- Affected versions
- IBM Db2 (Start Including 11.5, End Including 11.5.9 | Start Including 12.1.0, End Including 12.1.5)
- Fixed versions
- No explicit fixed version is currently recorded.
- Published
- 12 August 2026
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
Signal timeline
- CVE published
- Latest EPSS score: 0.4%
- Signal calculated at 14