CVE-2016-6258 is a high-severity privilege escalation vulnerability affecting Xen 4.7.x and earlier, including Citrix Xen and XenServer. It allows a local 32-bit PV guest OS administrator to gain host OS privileges by exploiting fast-paths in the PV pagetable code. With a CVSS score of 8.8, this vulnerability has a low attack complexity and can lead to complete compromise of confidentiality, integrity, and availability of the host system. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered some community attention and media coverage, indicating its significance.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
3.4.0CPE matchmatch criteria | cpe:2.3:o:xen:xen:3.4.0:*:*:*:*:*:*:* | ||
3.4.2CPE matchmatch criteria | cpe:2.3:o:xen:xen:3.4.2:*:*:*:*:*:*:* | ||
3.4.3CPE matchmatch criteria | cpe:2.3:o:xen:xen:3.4.3:*:*:*:*:*:*:* | ||
3.4.4CPE matchmatch criteria | cpe:2.3:o:xen:xen:3.4.4:*:*:*:*:*:*:* | ||
4.0.0CPE matchmatch criteria | cpe:2.3:o:xen:xen:4.0.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/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.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.