CVE-2017-17045

An issue was discovered in Xen through 4.9.x allowing HVM guest OS users to gain privileges on...

8.8 HighFix available

An issue was discovered in Xen through 4.9.x allowing HVM guest OS users to gain privileges on the host OS, obtain sensitive information, or cause a denial of service (BUG and host OS crash) by leveraging the mishandling of Populate on Demand (PoD) Physical-to-Machine (P2M) errors.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.43%Down 1.9 points since Apr 14, 2021

What each source reports

NVD Score used 8.8

Record: CVE-2017-17045
CVSS 3.0: 8.8 HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS 2.0: 7.2 HighAV:L/AC:L/Au:N/C:C/I:C/A:C
Weakness: CWE-416
Updated: 2026-11-02

CVE List No score

Record: CVE-2017-17045
Updated: 2026-11-02

EUVDEUVD-2017-8214 No score

Record: EUVD-2017-8214
Updated: 2026-11-03

GitHub AdvisoriesGHSA-33cr-5mgj-3gg9 8.8

An issue was discovered in Xen through 4.9.x allowing HVM guest OS users to gain privileges on...

Record: GHSA-33cr-5mgj-3gg9
CVSS 3.0: 8.8 HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness: CWE-416
Updated: 2026-11-02

OSVALPINE-CVE-2017-17045 8.8

Record: ALPINE-CVE-2017-17045
CVSS 3.0: 8.8 HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Updated: 2026-11-02

OSV 8.8

Record: CVE-2017-17045
CVSS 3.0: 8.8 HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Updated: 2026-11-02

OSVDEBIAN-CVE-2017-17045 8.8

Record: DEBIAN-CVE-2017-17045
CVSS 3.0: 8.8 HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2017-17045 8.8

Record: UBUNTU-CVE-2017-17045
CVSS 3.0: 8.8 HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`xen` Alpine:v3.5	before 4.7.3-r2	4.7.3-r2
`xen` Alpine:v3.6	before 4.8.2-r2	4.8.2-r2
`xen` Debian:12	before 4.8.2+xsa245-0+deb9u1	4.8.2+xsa245-0+deb9u1
`xen` Debian:13	before 4.8.2+xsa245-0+deb9u1	4.8.2+xsa245-0+deb9u1
`xen` Debian:14	before 4.8.2+xsa245-0+deb9u1	4.8.2+xsa245-0+deb9u1
`xen` Debian:7 From an advisory covering 6 CVEs	before 4.1.6.lts1-11, plus listed versions 4.1.4-34.1.4-3+deb7u14.1.4-3+deb7u24.1.4-3+deb7u34.1.4-3+deb7u4 Show 17 moreShow less 4.1.4-3+deb7u54.1.4-3+deb7u64.1.4-3+deb7u74.1.4-3+deb7u84.1.4-3+deb7u94.1.4-44.1.6.1-1+deb7u14.1.6.lts1-14.1.6.lts1-104.1.6.lts1-24.1.6.lts1-34.1.6.lts1-44.1.6.lts1-54.1.6.lts1-64.1.6.lts1-74.1.6.lts1-84.1.6.lts1-9	4.1.6.lts1-11
`xen` Debian:8 From an advisory covering 8 CVEs	before 4.4.4lts3-0+deb8u1, plus listed versions 4.4.1-94.4.1-9+deb8u14.4.1-9+deb8u104.4.1-9+deb8u24.4.1-9+deb8u3 Show 8 moreShow less 4.4.1-9+deb8u44.4.1-9+deb8u54.4.1-9+deb8u64.4.1-9+deb8u74.4.1-9+deb8u84.4.1-9+deb8u94.4.4lts1-0+deb8u14.4.4lts2-0+deb8u1	4.4.4lts3-0+deb8u1
`xen` Debian:9 From an advisory covering 16 CVEs	before 4.8.2+xsa245-0+deb9u1, plus listed versions 4.8.1-1+deb9u14.8.1-1+deb9u24.8.1-1+deb9u3	4.8.2+xsa245-0+deb9u1
`xen` Ubuntu:16.04:LTS	All versions, plus listed versions 4.5.1-0ubuntu14.5.1-0ubuntu24.6.0-1ubuntu14.6.0-1ubuntu24.6.0-1ubuntu4 Show 7 moreShow less 4.6.0-1ubuntu4.14.6.0-1ubuntu4.24.6.0-1ubuntu4.34.6.5-0ubuntu14.6.5-0ubuntu1.14.6.5-0ubuntu1.24.6.5-0ubuntu1.4	None known
`xen` Ubuntu:18.04:LTS	before 4.9.2-0ubuntu1, plus listed versions 4.9.0-0ubuntu34.9.0-0ubuntu4	4.9.2-0ubuntu1

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2017-17045 is a high vulnerability (CVSS 8.8) in Xen, published November 28, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.43%, the 37th percentile. Fixed in xen 4.7.3-r2.

References

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