CVE-2026-10858

IBM MQ for HPE NonStop versions 8.1.0 through 8.1.0.40 are vulnerable to a heap buffer underflow that can be exploited by authenticated attackers to trigger a denial of service or execute arbitrary code. Organizations using these specific versions should prioritize applying patches or mitigating measures to protect against potential exploitation. This vulnerability poses a critical risk due to its high severity rating and the potential for significant impact on system availability and security.