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Vulnerability record · CVE-2017-7995 · published 3 May 2017

CVE-2017-7995: Xen information exposure vulnerability

Xen · Xen

Xen PV guest before Xen 4.3 checked access permissions to MMIO ranges only after accessing them, allowing host PCI device space memory reads, leading to information disclosure. This is an error in the get_user function. NOTE: the upstream Xen Project considers versions before 4.5.x to be EOL.

3.8 CVSS 3.0 Low EPSS 0.37% · top 71.9% CWE-200 · Information exposure
3.8CVSS 3.0 base score, v2 1.7
0.37%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

Xen PV guest before Xen 4.3 checked access permissions to MMIO ranges only after accessing them, allowing host PCI device space memory reads, leading to information disclosure. This is an error in the get_user function. NOTE: the upstream Xen Project considers versions before 4.5.x to be EOL.

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

Affected products

6 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2017-05/msg00005.html Third Party Advisory
http://www.securityfocus.com/bid/98314 Third Party AdvisoryVDB Entry
https://bugzilla.suse.com/show_bug.cgi?id=1033948 Issue TrackingThird Party AdvisoryVDB Entry
http://lists.opensuse.org/opensuse-security-announce/2017-05/msg00005.html Third Party Advisory
http://www.securityfocus.com/bid/98314 Third Party AdvisoryVDB Entry
https://bugzilla.suse.com/show_bug.cgi?id=1033948 Issue TrackingThird Party AdvisoryVDB Entry

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2017-7995), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.