Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2017-10916

24
FAUCET Score

CVE-2017-10916 is an information exposure vulnerability affecting Xen hypervisor versions through 4.8.x caused by improper vCPU context-switch interactions with Memory Protection Extensions (MPX) and Protection Key (PKU) hardware features. Rated as High severity with a CVSS score of 7.5, this flaw allows guest OS users to bypass critical security defenses such as Address Space Layout Randomization (ASLR), leading to a high impact on confidentiality. Despite the severity, there is currently no evidence of active exploitation in the wild, and no public exploit code or Metasploit modules have been identified.

Impacted Technologies

VendorProductVersion(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:*:*:*:*:*:*:*
4.5.5CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.5.5:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.35%
Probability of exploitation in next 30 days
EPSS Percentile
68.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0135 is in the 49th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2017-10916Important

xen: x86: PKRU and BND* leakage between vCPU-s (XSA-220)

Jun 20, 2017

References

security.gentoo.org / glsa/201708-03
xenbits.xen.org / xsa/advisory-220.html
Mailing ListMitigationVendor Advisory
debian.org / security/2017/dsa-3969
securityfocus.com / bid/99167
securitytracker.com / id/1038730