CVE-2026-16982 is a heap buffer overflow vulnerability in IBM i versions 7.3 through 7.6. The flaw allows a remote attacker to cause a denial of service condition by writing out of bounds on the heap. The vulnerability has a CVSS 3.1 base score of 7.5, indicating high severity, with network attack vector, low attack complexity, no privileges or user interaction required, and impact limited to availability (denial of service). No known exploits are reported in the wild, and no vendor remediation or patch has been published at this time.

A remote attacker can exploit this vulnerability to cause a denial of service on affected IBM i systems by triggering a heap buffer overflow. There is no impact on confidentiality or integrity reported. The service disruption could affect system availability.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, monitor IBM's security advisories for updates. No temporary or official fixes have been documented.