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5.3

IBM i DRDA/ DDM Denial of Service Risk

CVE-2026-17078 · published 2 months ago
Summary

IBM i versions 7.6 to 7.3 are at risk of a denial of service attack that can exhaust system resources. This means an attacker could potentially make the system unusable, causing downtime and impacting business operations. IBM recommends applying the latest security patches to mitigate this risk.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
ibm i 7.6
Original advisory text
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to cause a denial of service due to resource exhaustion.
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to cause a denial of service due to resource exhaustion.
References
Fix within
Internet-facing 14 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically
  • Gives an attacker partial control
Severity
5.3 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-400Uncontrolled Resource Consumption
Timeline
Published13 Aug 2026
Updated4 Nov 2026
First seen13 Aug 2026
Sources
CVE-2026-17078 · NVD
CVE-2026-17078 · MITRE
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