https://patchthecve.com/CVEs with upgrade or downgrade fix stepshttps://patchthecve.com/cve/CVE-2021-36148.htmlhttps://patchthecve.com/cve/CVE-2021-36148.htmlWed, 17 Jun 2026 03:58:24 +0000HIGH 7.8: 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.https://patchthecve.com/cve/CVE-2021-36147.htmlhttps://patchthecve.com/cve/CVE-2021-36147.htmlWed, 17 Jun 2026 03:58:24 +0000HIGH 7.5: An issue was discovered in ACRN before 2.5. It allows a devicemodel/hw/pci/virtio/virtio_net.c virtio_net_ping_rxq NULL pointer dereference for vq->used.https://patchthecve.com/cve/CVE-2021-36146.htmlhttps://patchthecve.com/cve/CVE-2021-36146.htmlWed, 17 Jun 2026 03:58:24 +0000HIGH 7.5: ACRN before 2.5 has a devicemodel/hw/pci/xhci.c NULL Pointer Dereference for a trb pointer.https://patchthecve.com/cve/CVE-2021-36145.htmlhttps://patchthecve.com/cve/CVE-2021-36145.htmlWed, 17 Jun 2026 03:58:24 +0000HIGH 7.5: The Device Model in ACRN through 2.5 has a devicemodel/core/mem.c use-after-free for a freed rb_entry.https://patchthecve.com/cve/CVE-2021-36144.htmlhttps://patchthecve.com/cve/CVE-2021-36144.htmlWed, 17 Jun 2026 03:58:24 +0000HIGH 7.5: The polling timer handler in ACRN before 2.5 has a use-after-free for a freed virtio device, related to devicemodel/hw/pci/virtio/*.c.https://patchthecve.com/cve/CVE-2021-36143.htmlhttps://patchthecve.com/cve/CVE-2021-36143.htmlWed, 17 Jun 2026 03:58:24 +0000HIGH 7.5: ACRN before 2.5 has a hw/pci/virtio/virtio.c vq_endchains NULL Pointer Dereference.https://patchthecve.com/cve/CVE-2020-28346.htmlhttps://patchthecve.com/cve/CVE-2020-28346.htmlWed, 17 Jun 2026 03:10:18 +0000HIGH 7.5: ACRN through 2.2 has a devicemodel/hw/pci/virtio/virtio.c NULL Pointer Dereference.https://patchthecve.com/cve/CVE-2020-15687.htmlhttps://patchthecve.com/cve/CVE-2020-15687.htmlWed, 17 Jun 2026 02:57:03 +0000HIGH 7.5: Missing access control restrictions in the Hypervisor component of the ACRN Project (v2.0 and v1.6.1) allow a malicious entity, with root access in the Service VM userspace, to abuse the PCIe assign/de-assign Hypercalls via crafted ioctls and payloads. This attack results in a corrupt state and Denihttps://patchthecve.com/cve/CVE-2019-18844.htmlhttps://patchthecve.com/cve/CVE-2019-18844.htmlWed, 17 Jun 2026 02:25:27 +0000HIGH 7.5: The Device Model in ACRN before 2019w25.5-140000p relies on assert calls in devicemodel/hw/pci/core.c and devicemodel/include/pci_core.h (instead of other mechanisms for propagating error information or diagnostic information), which might allow attackers to cause a denial of service (assertion fail