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CVE-2017-15588

25
FAUCET Score

CVE-2017-15588 is a high-severity race condition vulnerability affecting Xen through version 4.9.x, allowing x86 PV guest operating system users to execute arbitrary code on the host OS due to a stale TLB entry. With a CVSS score of 7.8, exploitation requires local access and high attack complexity, but can lead to complete compromise of confidentiality, integrity, and availability of the host. There is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
4.9.0CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.9.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.1
Impact Score
6.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.33%
Probability of exploitation in next 30 days
EPSS Percentile
25.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0033 is in the 63rd percentile among its peer group of 1,525 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.4 InfoSec Media, 0.1 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: xen

Vendor Advisories (1)

redhatCVE-2017-15588Important

xen: Stale TLB entry due to page type release race (XSA-241)

Oct 12, 2017

References

lists.debian.org / debian-lts-announce/2017/11/msg00027.html
lists.debian.org / debian-lts-announce/2018/10/msg00009.html
security.gentoo.org / glsa/201801-14
support.citrix.com / article/CTX228867
debian.org / security/2017/dsa-4050
xenbits.xen.org / xsa/advisory-241.html
Mailing ListMitigationPatchVendor Advisory
securityfocus.com / bid/101490
Third Party AdvisoryVDB Entry
securitytracker.com / id/1039568
Third Party AdvisoryVDB Entry