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CVE-2017-15595

38
FAUCET Score

CVE-2017-15595 is a high-severity vulnerability affecting Xen through version 4.9.x, allowing x86 PV guest OS users to trigger a denial of service or potentially gain privileges. The vulnerability stems from crafted page-table stacking, leading to unbounded recursion, stack consumption, and hypervisor crashes. With a CVSS score of 8.8 (High), it presents a significant risk due to its local attack vector and high impact on confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, an exploit (EDB-43014) is publicly available, though there is minimal community discussion or media coverage surrounding this CVE.

Impacted Technologies

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

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.0
Impact Score
6.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.55%
Probability of exploitation in next 30 days
EPSS Percentile
72.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-43014 · Oct 18, 2017
This CVE's current EPSS score of 0.0155 is in the 95th percentile among its peer group of 16,994 CVEs.

Social Chatter

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.

Media 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

Vendor Patches (1)

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

Vendor Advisories (1)

redhatCVE-2017-15595Moderate

xen: Unlimited recursion in linear pagetable de-typing (XSA-240)

Oct 12, 2017

References

lists.debian.org / debian-lts-announce/2017/11/msg00027.html
lists.debian.org / debian-lts-announce/2018/10/msg00021.html
security.gentoo.org / glsa/201801-14
support.citrix.com / article/CTX228867
debian.org / security/2017/dsa-4050
exploit-db.com / exploits/43014
xenbits.xen.org / xsa/advisory-240.html
MitigationPatchVendor Advisory