HIGH
xen: x86: Disallow L3 recursive pagetable for 32-bit PV guests
Published Sep 21, 2016
8.5
HIGHCVSS 3.0
EPSS 0.40%
Description
The get_page_from_l3e function in arch/x86/mm.c in Xen allows local 32-bit PV guest OS administrators to gain host OS privileges via vectors related to L3 recursive pagetables.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
8.2 HIGH NVD
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required High
User Interaction None
Scope Changed
Confidentiality Impact High
Integrity Impact High
Availability Impact High
1 other source (Red Hat) ▾
8.5 HIGH Red Hat
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack Vector Network
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Changed
Confidentiality Impact High
Integrity Impact High
Availability Impact High
6.8 MEDIUM NVD
AV:L/AC:L/Au:S/C:C/I:C/A:C
Access Vector Local
Access Complexity Low
Authentication Single
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
0.40% 0.00402
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.00402
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.40% (0.00402) | 32.03th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.41% (0.00406) | 32.05th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.06% (0.00056) | 14.80th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00062) | 28.60th | v3 (v2023.03.01) |
| Jun 13, 2024 | 0.06% (0.00062) | 26.61th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00062) | 24.59th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.10% (0.01104) | 54.09th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.10% (0.01104) | 52.45th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.10% (0.01104) | 50.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.10% (0.01104) | 28.85th | v2 (v2022.01.01) |
Weaknesses (1)
References (13)
- http://support.citrix.com/article/CTX216071 x_refsource_CONFIRMThird Party Advisory
- http://www.debian.org/security/2016/dsa-3663 vendor-advisoryx_refsource_DEBIAN
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html x_refsource_CONFIRM
- http://www.securityfocus.com/bid/92862 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1036751 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- http://xenbits.xen.org/xsa/advisory-185.html x_refsource_CONFIRMPatchVendor Advisory
- http://xenbits.xen.org/xsa/xsa185.patch x_refsource_CONFIRMPatchVendor Advisory
- https://access.redhat.com/security/cve/CVE-2016-7092 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1370319 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2016-7092
- https://security.gentoo.org/glsa/201611-09 vendor-advisoryx_refsource_GENTOO
- https://www.cve.org/CVERecord?id=CVE-2016-7092
- https://xenbits.xen.org/xsa/advisory-185.html
| Link | Providers | Tags |
|---|---|---|
| http://support.citrix.com/article/CTX216071 | x_refsource_CONFIRMThird Party Advisory | |
| http://www.debian.org/security/2016/dsa-3663 | vendor-advisoryx_refsource_DEBIAN | |
| http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html | x_refsource_CONFIRM | |
| http://www.securityfocus.com/bid/92862 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1036751 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| http://xenbits.xen.org/xsa/advisory-185.html | x_refsource_CONFIRMPatchVendor Advisory | |
| http://xenbits.xen.org/xsa/xsa185.patch | x_refsource_CONFIRMPatchVendor Advisory | |
| https://access.redhat.com/security/cve/CVE-2016-7092 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1370319 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2016-7092 | ||
| https://security.gentoo.org/glsa/201611-09 | vendor-advisoryx_refsource_GENTOO | |
| https://www.cve.org/CVERecord?id=CVE-2016-7092 | ||
| https://xenbits.xen.org/xsa/advisory-185.html |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Sep 21, 2016
Updated Aug 6, 2024
Reserved Aug 25, 2016
Link CVE-2016-7092
CISA Vulnrichment
Updated n/a