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CVE-2019-17344

21
FAUCET Score

CVE-2019-17344 is a denial-of-service vulnerability affecting Xen through version 4.11.x, specifically impacting x86 PV guest operating systems. An attacker with low privileges can exploit a long-running operation related to PTE updates to cause a denial of service. While the CVSS score is 6.5 (Medium), indicating a local attack vector with low complexity and high availability impact, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.11.2CPE matchmatch criteria
cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.0
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.35%
Probability of exploitation in next 30 days
EPSS Percentile
27.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0035 is in the 84th percentile among its peer group of 15,940 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 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 0.1 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-2019-17344Moderate

xen: xsa290: missing preemption in x86 PV page table unvalidation

Mar 5, 2019

References

seclists.org / bugtraq/2020/Jan/21
Mailing ListThird Party Advisory
debian.org / security/2020/dsa-4602
Third Party Advisory
xenbits.xen.org / xsa/advisory-290.html
MitigationPatchVendor Advisory
openwall.com / lists/oss-security/2019/10/25/3
Mailing ListThird Party Advisory
xenbits.xen.org / xsa/advisory-290.html
Vendor Advisory