CVE-2016-6259 describes a denial-of-service vulnerability in Xen 4.5.x through 4.7.x, including Citrix Xen and XenServer. A local 32-bit PV guest OS kernel can crash the hypervisor and other VMs by triggering a safety check due to improper SMAP whitelisting. This medium-severity flaw (CVSS 6.2) has a low attack complexity and requires local access, leading to a high availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion, though it did receive limited media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
4.5.0CPE matchmatch criteria | cpe:2.3:o:xen:xen:4.5.0:*:*:*:*:*:*:* | ||
4.5.1CPE matchmatch criteria | cpe:2.3:o:xen:xen:4.5.1:*:*:*:*:*:*:* | ||
4.5.2CPE matchmatch criteria | cpe:2.3:o:xen:xen:4.5.2:*:*:*:*:*:*:* | ||
4.5.3CPE matchmatch criteria | cpe:2.3:o:xen:xen:4.5.3:*:*:*:*:*:*:* | ||
4.6.0CPE matchmatch criteria | cpe:2.3:o:xen:xen:4.6.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.