CWE-1260 vulnerabilities

CVE-2026-76668 is a medium severity vulnerability in the Hewlett Packard Enterprise HPE NonStop Kernel involving improper handling of overlap between protected memory ranges. This flaw may allow user space processes to access privileged or unmapped data, potentially leading to integrity and availability impacts. The vulnerability has a CVSS 3.1 base score of 6.3, indicating a moderate risk level. No affected versions or patch information are currently provided.

Improper handling of overlap between the segmented reverse map table (RMP) and system management mode (SMM) memory could allow a privileged attacker corrupt or partially infer SMM memory resulting in loss of integrity or confidentiality.

Improper access control in AMD Secure Encrypted Virtualization (SEV) firmware could allow a malicious hypervisor to bypass RMP protections, potentially resulting in a loss of SEV-SNP guest memory integrity.