CVE-2017-8903

Xen through 4.8.x on 64-bit platforms mishandles page tables after an IRET hypercall, which might...

8.8 HighFix available

Xen through 4.8.x on 64-bit platforms mishandles page tables after an IRET hypercall, which might allow PV guest OS users to execute arbitrary code on the host OS, aka XSA-213.

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

0.49%Down 1.7 points since Apr 14, 2021

What each source reports

NVD Score used 8.8

Xen through 4.8.x on 64-bit platforms mishandles page tables after an IRET hypercall, which might allow PV guest OS users to execute arbitrary code on the host OS, aka XSA-213.

Record: CVE-2017-8903
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
Updated: 2026-11-02

CVE List No score

Xen through 4.8.x on 64-bit platforms mishandles page tables after an IRET hypercall, which might allow PV guest OS users to execute arbitrary code on the host OS, aka XSA-213.

Record: CVE-2017-8903
Updated: 2026-11-02

EUVDEUVD-2017-17843 No score

Xen through 4.8.x on 64-bit platforms mishandles page tables after an IRET hypercall, which might allow PV guest OS users to execute arbitrary code on the host OS, aka XSA-213.

Record: EUVD-2017-17843
Updated: 2026-11-03

GitHub AdvisoriesGHSA-qx4f-g697-2347 8.8

Xen through 4.8.x on 64-bit platforms mishandles page tables after an IRET hypercall, which might...

Xen through 4.8.x on 64-bit platforms mishandles page tables after an IRET hypercall, which might allow PV guest OS users to execute arbitrary code on the host OS, aka XSA-213.

Record: GHSA-qx4f-g697-2347
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

OSVALPINE-CVE-2017-8903 8.8

Xen through 4.8.x on 64-bit platforms mishandles page tables after an IRET hypercall, which might allow PV guest OS users to execute arbitrary code on the host OS, aka XSA-213.

Record: ALPINE-CVE-2017-8903
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

Xen through 4.8.x on 64-bit platforms mishandles page tables after an IRET hypercall, which might allow PV guest OS users to execute arbitrary code on the host OS, aka XSA-213.

Record: CVE-2017-8903
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-2017-8903 8.8

Xen through 4.8.x on 64-bit platforms mishandles page tables after an IRET hypercall, which might allow PV guest OS users to execute arbitrary code on the host OS, aka XSA-213.

Record: DEBIAN-CVE-2017-8903
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-2017-8903 8.8

Xen through 4.8.x on 64-bit platforms mishandles page tables after an IRET hypercall, which might allow PV guest OS users to execute arbitrary code on the host OS, aka XSA-213.

Record: UBUNTU-CVE-2017-8903
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:v3.10	before 4.8.1-r2	4.8.1-r2
`xen` Alpine:v3.11	before 4.8.1-r2	4.8.1-r2
`xen` Alpine:v3.12	before 4.8.1-r2	4.8.1-r2
`xen` Alpine:v3.13	before 4.8.1-r2	4.8.1-r2
`xen` Alpine:v3.14	before 4.8.1-r2	4.8.1-r2
`xen` Alpine:v3.15	before 4.8.1-r2	4.8.1-r2
`xen` Alpine:v3.16	before 4.8.1-r2	4.8.1-r2
`xen` Alpine:v3.17	before 4.8.1-r2	4.8.1-r2
`xen` Alpine:v3.18	before 4.8.1-r2	4.8.1-r2
`xen` Alpine:v3.19	before 4.8.1-r2	4.8.1-r2

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Affected packages
Package	Affected	Fixed
`xen` Alpine:v3.20	before 4.8.1-r2	4.8.1-r2
`xen` Alpine:v3.21	before 4.8.1-r2	4.8.1-r2
`xen` Alpine:v3.22	before 4.8.1-r2	4.8.1-r2
`xen` Alpine:v3.23	before 4.8.1-r2	4.8.1-r2
`xen` Alpine:v3.24	before 4.8.1-r2	4.8.1-r2
`xen` Alpine:v3.3	before 4.6.3-r7	4.6.3-r7
`xen` Alpine:v3.4	before 4.6.3-r9	4.6.3-r9
`xen` Alpine:v3.5	before 4.7.2-r1	4.7.2-r1
`xen` Alpine:v3.6	before 4.8.1-r2	4.8.1-r2
`xen` Alpine:v3.7	before 4.8.1-r2	4.8.1-r2
`xen` Alpine:v3.8	before 4.8.1-r2	4.8.1-r2
`xen` Alpine:v3.9	before 4.8.1-r2	4.8.1-r2
`xen` Debian:12	before 4.8.1-1+deb9u1	4.8.1-1+deb9u1
`xen` Debian:13	before 4.8.1-1+deb9u1	4.8.1-1+deb9u1
`xen` Debian:14	before 4.8.1-1+deb9u1	4.8.1-1+deb9u1
`xen` Debian:7	before 4.1.6.lts1-8, plus listed versions 4.1.4-34.1.4-3+deb7u14.1.4-3+deb7u24.1.4-3+deb7u34.1.4-3+deb7u4 Show 14 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.lts1-24.1.6.lts1-34.1.6.lts1-44.1.6.lts1-54.1.6.lts1-64.1.6.lts1-7	4.1.6.lts1-8
`xen` Debian:8	before 4.4.1-9+deb8u9, plus listed versions 4.4.1-94.4.1-9+deb8u14.4.1-9+deb8u24.4.1-9+deb8u34.4.1-9+deb8u4 Show 4 moreShow less 4.4.1-9+deb8u54.4.1-9+deb8u64.4.1-9+deb8u74.4.1-9+deb8u8	4.4.1-9+deb8u9
`xen` Ubuntu:14.04:LTS	before 4.4.2-0ubuntu0.14.04.11, plus listed versions 4.3.0-1ubuntu14.3.0-1ubuntu24.3.0-1ubuntu34.3.0-1ubuntu44.3.0-1ubuntu5 Show 20 moreShow less 4.4.0-0ubuntu34.4.0-0ubuntu44.4.0-0ubuntu54.4.0-0ubuntu5.14.4.0-0ubuntu5.24.4.1-0ubuntu0.14.04.14.4.1-0ubuntu0.14.04.24.4.1-0ubuntu0.14.04.34.4.1-0ubuntu0.14.04.44.4.1-0ubuntu0.14.04.54.4.1-0ubuntu0.14.04.64.4.2-0ubuntu0.14.04.14.4.2-0ubuntu0.14.04.24.4.2-0ubuntu0.14.04.34.4.2-0ubuntu0.14.04.44.4.2-0ubuntu0.14.04.54.4.2-0ubuntu0.14.04.64.4.2-0ubuntu0.14.04.74.4.2-0ubuntu0.14.04.94.4.2-0ubuntu0.14.04.10	4.4.2-0ubuntu0.14.04.11
`xen` Ubuntu:16.04:LTS	before 4.6.5-0ubuntu1.1, plus listed versions 4.5.1-0ubuntu14.5.1-0ubuntu24.6.0-1ubuntu14.6.0-1ubuntu24.6.0-1ubuntu4 Show 4 moreShow less 4.6.0-1ubuntu4.14.6.0-1ubuntu4.24.6.0-1ubuntu4.34.6.5-0ubuntu1	4.6.5-0ubuntu1.1

History

History
Recorded	Changed	Sources
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-2017-8903 is a high vulnerability (CVSS 8.8) in Xen, published May 9, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.49%, the 42nd percentile. Fixed in xen 4.8.1-r2.

References

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