CVE-2021-36148: Linux Acrn

High severity, CVSS 7.8. EPSS: 0.7% chance of exploitation in the next 30 days.

An issue was discovered in ACRN before 2.5. dmar_free_irte in hypervisor/arch/x86/vtd.c allows an irte_alloc_bitmap buffer overflow.

Affected products

• Linux Acrn: before 2.5 (fixed in 2.5)

Published 2021-07-02. Last modified 2026-06-17.