CVE-2025-27466 is a critical NULL pointer dereference vulnerability affecting Xen's viridian code, specifically in the handling of guest memory pages during the updating of the reference TSC area. This flaw carries a CVSS score of 9.8 (CRITICAL) due to its network-based attack vector, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion with 11 mentions, indicating notable attention from security researchers.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 4.13.0, < 4.17.0CPE matchmatch criteria | cpe:2.3:o:xen:xen:*:*:*:*:*:*:x86:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 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.
Remediation records are not available for this CVE.