Quick answers
- Is CVE-2026-16480 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-16480 being exploited in the wild.
- How severe is CVE-2026-16480?
- Medium severity, with a CVSS score of 4.3, published 12 August 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-2026-16480?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-16480 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-16480?
- 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.
Technical details
This is an improper authorization vulnerability (CWE-602: Client-Side Enforcement of Server-Side Security) affecting certain Db2 commands. The vulnerability allows a non-privileged user to bypass authority checks and modify database catalog data. Attack requires network access and valid database credentials (PR:L). The vulnerability has been patched via security updates available for affected versions; fixes include interim patches for V11.5.9, V12.1.4, and V12.1.5. No exploitation in the wild has been reported.
Affected products
- IBM Db2 11.5.0 through 11.5.9, 12.1.0 through 12.1.5
Timeline
- 2026-08-12: disclosed