Quick answers
- Is CVE-2026-104332 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-104332 being exploited in the wild.
- How severe is CVE-2026-104332?
- Medium severity, with a CVSS score of 5.5, published 12 October 2026.
- Which products and versions are affected?
- IBM Db2 11.5.0 through 11.5.9, 12.1.0 through 12.1.5.
- Is there a fix for CVE-2026-104332?
- Yes: fixed in Db2 11.5.9 with Security Update #94236 or later; Db2 12.1.4 with Security Update #94722 or later; Db2 12.1.5 with Security Update #94858 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-104332 attacked?
- It is attacked with local access, in a software library.
- Am I affected by CVE-2026-104332?
- Check whether you run IBM Db2 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: Db2 11.5.9 with Security Update #94236 or later; Db2 12.1.4 with Security Update #94722 or later; Db2 12.1.5 with Security Update #94858 or later
Technical details
A stack-based buffer overflow in Db2's Materialized Query Table processing allows an authenticated attacker with local access to trigger a denial of service. The vulnerability requires local system access and database user privileges to execute the malicious query; no network-based exploitation is possible. A fix is available via security updates for supported versions.
Affected products
- IBM Db2 11.5.0 through 11.5.9, 12.1.0 through 12.1.5
Timeline
- 2026-10-08: disclosed