Quick answers
- Is CVE-2026-17177 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-17177 being exploited in the wild.
- How severe is CVE-2026-17177?
- High severity, with a CVSS score of 7.5, 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-2026-17177?
- 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-2026-17177 attacked?
- It is attacked over the network, in a hosted service.
- Am I affected by CVE-2026-17177?
- 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
This vulnerability is caused by uncontrolled recursion in IBM Db2 Mirror for i, which allows a remote, unauthenticated attacker to trigger excessive recursive function calls. The vulnerable component processes incoming requests without properly limiting recursion depth. An attacker can craft a specially formed network request to exploit this flaw, causing the service process to exhaust stack memory and crash, resulting in denial of service. The vulnerability affects versions 7.4, 7.5, and 7.6, and patches are available from IBM.
Affected products
- IBM Db2 Mirror for i 7.4, 7.5, 7.6
Timeline
- 2026-08-14: disclosed