Quick answers
- Is CVE-2026-16879 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-16879 being exploited in the wild.
- How severe is CVE-2026-16879?
- High severity, with a CVSS score of 8.8, published 14 August 2026.
- Which products and versions are affected?
- IBM Db2 Mirror For I 7.4, 7.5, 7.6.
- Is there a fix for CVE-2026-16879?
- 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-2026-16879 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-16879?
- Check whether you run IBM Db2 Mirror For I 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
The vulnerability is an authorization bypass (CWE-285: Improper Authorization) in Db2 Mirror for i that allows an authenticated remote attacker to bypass security restrictions through improper validation of user-supplied input. The flaw is in how the application enforces access control; a legitimate user with credentials can craft requests that circumvent authorization checks intended to restrict certain operations. The attack requires valid authentication credentials and network access to the Db2 Mirror for i interface, but no special user interaction. An attacker can use this to access data or perform operations beyond their assigned privileges. Patches are available from IBM.
Affected products
- IBM Db2 Mirror for i 7.4, 7.5, 7.6
Timeline
- 2026-08-14: disclosed