CVE-2016-4440 is a vulnerability in the Linux kernel (through version 4.6.3), specifically within the arch/x86/kvm/vmx.c component, that affects the handling of APICv on/off states. This flaw allows a guest OS user to gain direct APIC MSR access on the host OS via x2APIC mode. The vulnerability carries a CVSS v3.1 score of 7.8 (High), indicating a local attack vector with low complexity, and can lead to a denial of service (host OS crash) or potentially arbitrary code execution. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage regarding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 4.5, < 4.7CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.