{"metadata": {"vulnerability": "CVE-2026-99176", "count": 20, "kinds": {"milestone": 7, "sighting": 1, "kev": 0, "other": 12}}, "data": [{"timestamp": "2026-09-25T10:25:14.399Z", "date_only": false, "value": "2026-09-25T10:25:14.399Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-99176", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-10-28T10:35:30.615Z", "date_only": false, "value": "2026-10-28T10:35:30.615Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-99176", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-10-28T11:17:00Z", "date_only": false, "value": "2026-10-28T11:17:00Z", "kind": "milestone", "label": "Published", "source": "osv_ubuntu \u00b7 UBUNTU-CVE-2026-99176", "record": "UBUNTU-CVE-2026-99176", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-10-28T11:17:38Z", "date_only": false, "value": "2026-10-28T11:17:38Z", "kind": "other", "label": "Nvd published at", "source": "github \u00b7 GHSA-HQ6M-JX84-XXFW", "record": "GHSA-HQ6M-JX84-XXFW", "field": "database_specific.nvd_published_at", "linked_record": true}, {"timestamp": "2026-10-28T11:17:38.270Z", "date_only": false, "value": "2026-10-28T11:17:38.270", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-99176", "record": "FKIE_CVE-2026-99176", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-10-28T11:35:02.533Z", "date_only": false, "value": "2026-10-28T11:35:02.533068Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117518323023828491", "record": "CVE-2026-99176", "field": "creation_timestamp", "uuid": "d2ba30be-d0cd-483b-b2a3-35e55bac7202", "content": "CVE-2026-99176 KVM: nVMX: Reset MMU back to the root MMU if loading L2 state fails for !VM-Entry In the Linux kernel, the following vulnerability has been resolved:\nKVM: nVMX: Reset MMU back to the root MMU if loading L2 state fails for !VM-Entry\nReset the vCPU's MMU pointer back to the root MMU if loading L2 state failsin the \"not from VM-Entry\" case, i.e. when emulating RSM or handlingKVM_SET_NESTED_STATE.  Failure to unwind the MMU pointer results in KVMtrying to run L1 with a nested MMU, and is especially problematic if thevCPU manages to free its nested state before the VM crashes.  Constructingthe root for a nested EPT MMU goes through vmcs12, which is dynamicallyallocated/freed when nVMX is enabled/disabled.  And so if the nested stateis freed with the MMU still pointing at the nested MMU, KVM will hit a NULLpointer deref when attempting to get L1=>L2 EPTP.\n  BUG: kernel NULL pointer dereference, address: 0000000000000078  #PF: supervisor read access in kernel mode  #PF: error_code(0x0000) - not-present page  PGD 114a2d067 P4D 111743067 PUD 11141f067 PMD 0  Oops: Oops: 0000 [#1] SMP  CPU: 20 UID: 1000 PID: 1272 Comm: nested_tdp_faul Not tainted 7.3.0-rc4-8c89f11d1a99b-sink-vm #1914 PREEMPTLAZY  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015  RIP: 0010:nested_ept_get_eptp+0xb/0x10 [kvm_intel]  Call Trace:   <TASK>   kvm_mmu_load+0xcd/0x870 [kvm]   kvm_arch_vcpu_ioctl_run+0x18f5/0x1f80 [kvm]   kvm_vcpu_ioctl+0x2c7/0x970 [kvm]   __x64_sys_ioctl+0x90/0xd0   do_syscall_64+0x9c/0x4d0   entry_SYSCALL_64_after_hwframe+0x4b/0x53  RIP: 0033:0x47491b   </TASK>  Modules linked in: kvm_intel kvm irqbypass  CR2: 0000000000000078  ---[ end trace 0000000000000000 ]---  RIP: 0010:nested_ept_get_eptp+0xb/0x10 [kvm_intel]\n[sean: write changelog]\nhttps://www.cve.org/CVERecord?id=CVE-2026-99176https://git.kernel.org/stable/c/d00d5f534a8238674755e59826a6c7d3c8efb870https://git.kernel.org/stable/c/c9716f956216eb74ab0aad7f633586edd49e0322https://git.kernel.org/stable/c/c8f4cfe1cf93bce924e27f2abead7a4c4a487505#kernel #Linux#CVE_2026_99176#bot", "url": "https://infosec.exchange/users/cve/statuses/117518323023828491"}, {"timestamp": "2026-10-28T12:31:06Z", "date_only": false, "value": "2026-10-28T12:31:06Z", "kind": "milestone", "label": "Published", "source": "github \u00b7 GHSA-HQ6M-JX84-XXFW", "record": "GHSA-HQ6M-JX84-XXFW", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-10-29T01:07:32Z", "date_only": false, "value": "2026-10-29T01:07:32.000Z", "kind": "other", "label": "Advisory revision", "source": "csaf_microsoft \u00b7 MSRC_CVE-2026-99176", "record": "MSRC_CVE-2026-99176", 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