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CVE-2019-17340

26
FAUCET Score

CVE-2019-17340 is a high-severity vulnerability affecting Xen through version 4.11.x, specifically impacting Debian Linux distributions. It allows a local x86 guest OS user to cause a denial of service or escalate privileges due to improper handling of grant-table transfer requests. With a CVSS score of 8.8, this vulnerability has a high impact on confidentiality, integrity, and availability, requiring low privileges and local access. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.2.0, <= 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

8.8HIGH

CVSS:3.1/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
3.1

Exploit Intelligence

EPSS Score
0.35%
Probability of exploitation in next 30 days
EPSS Percentile
27.9%
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 66th percentile among its peer group of 17,070 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 Advisories (1)

redhatCVE-2019-17340Important

xen: mishanding grant-table transfer allows x86 guest OS to cause a DoS or escalate their privileges

Oct 31, 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-284.html
Vendor Advisory
openwall.com / lists/oss-security/2019/10/25/1
Mailing ListThird Party Advisory
xenbits.xen.org / xsa/advisory-284.html
Vendor Advisory