MEDIUM
xen: guest user mode may crash guest with non-canonical RIP (XSA-170)
Published Feb 19, 2016
5.5
MEDIUMCVSS 3.0
EPSS 0.39%
Description
VMX in Xen 4.6.x and earlier, when using an Intel or Cyrix CPU, allows local HVM guest users to cause a denial of service (guest crash) via vectors related to a non-canonical RIP.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
5.5 MEDIUM NVD
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
2.1 LOW NVD
AV:L/AC:L/Au:N/C:N/I:N/A:P
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
0.39% 0.00391
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.00391
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 | 0.39% (0.00391) | 30.80th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.40% (0.00395) | 31.03th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.07% (0.00066) | 17.59th | 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 | 1.03% (0.01034) | 41.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.03% (0.01034) | 39.91th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.03% (0.01034) | 37.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.03% (0.01034) | 20.32th | v2 (v2022.01.01) |
Weaknesses (0)
No CWE recorded.
References (11)
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177990.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178518.html vendor-advisoryx_refsource_FEDORA
- http://support.citrix.com/article/CTX209443 x_refsource_CONFIRM
- http://www.debian.org/security/2016/dsa-3519 vendor-advisoryx_refsource_DEBIAN
- http://www.securitytracker.com/id/1035043 vdb-entryx_refsource_SECTRACK
- http://xenbits.xen.org/xsa/advisory-170.html x_refsource_CONFIRMPatchVendor Advisory
- https://access.redhat.com/security/cve/CVE-2016-2271 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1304628 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2016-2271
- https://security.gentoo.org/glsa/201604-03 vendor-advisoryx_refsource_GENTOO
- https://www.cve.org/CVERecord?id=CVE-2016-2271
| Link | Providers | Tags |
|---|---|---|
| http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177990.html | vendor-advisoryx_refsource_FEDORA | |
| http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178518.html | vendor-advisoryx_refsource_FEDORA | |
| http://support.citrix.com/article/CTX209443 | x_refsource_CONFIRM | |
| http://www.debian.org/security/2016/dsa-3519 | vendor-advisoryx_refsource_DEBIAN | |
| http://www.securitytracker.com/id/1035043 | vdb-entryx_refsource_SECTRACK | |
| http://xenbits.xen.org/xsa/advisory-170.html | x_refsource_CONFIRMPatchVendor Advisory | |
| https://access.redhat.com/security/cve/CVE-2016-2271 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1304628 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2016-2271 | ||
| https://security.gentoo.org/glsa/201604-03 | vendor-advisoryx_refsource_GENTOO | |
| https://www.cve.org/CVERecord?id=CVE-2016-2271 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Feb 19, 2016
Updated Aug 5, 2024
Reserved Feb 9, 2016
Link CVE-2016-2271
CISA Vulnrichment
Updated n/a