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-2017-17565

21
FAUCET Score

CVE-2017-17565 is a denial-of-service vulnerability affecting Xen through version 4.9.x. A low-privileged PV guest OS user can crash the host OS when shadow mode and log-dirty mode are enabled, due to an incorrect assertion related to M2P. This vulnerability has a CVSS score of 5.6 (Medium), indicating a local attack vector with high attack complexity and a high impact on availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.9.1CPE matchmatch criteria
cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.6MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.1
Impact Score
4.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.36%
Probability of exploitation in next 30 days
EPSS Percentile
28.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0036 is in the 77th percentile among its peer group of 1,297 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.4 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2017-17565Moderate

xen: improper bug check in x86 log-dirty handling (XSA-251)

Dec 12, 2017

References

lists.debian.org / debian-lts-announce/2018/01/msg00003.html
lists.debian.org / debian-lts-announce/2018/10/msg00009.html
security.gentoo.org / glsa/201801-14
support.citrix.com / article/CTX232096
debian.org / security/2018/dsa-4112
xenbits.xen.org / xsa/advisory-251.html
MitigationPatchVendor Advisory
openwall.com / lists/oss-security/2017/12/12/5
Mailing List
securityfocus.com / bid/102175
securitytracker.com / id/1040771