HIGH
xen: x86: Mishandling of SYSCALL singlestep during emulation (XSA-204)
Published Jan 26, 2017
7.8
HIGHCVSS 3.0
EPSS 0.42%
Description
Xen through 4.8.x allows local 64-bit x86 HVM guest OS users to gain privileges by leveraging mishandling of SYSCALL singlestep during emulation.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
7.8 HIGH NVD
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
1 other source (Red Hat) ▾
7.4 HIGH Red Hat
CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
4.6 MEDIUM NVD
AV:L/AC:L/Au:N/C:P/I:P/A:P
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
0.42% 0.00424
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.00424
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 | 0.42% (0.00424) | 34.39th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.42% (0.00424) | 33.68th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.10% (0.00099) | 25.14th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00059) | 26.93th | v3 (v2023.03.01) |
| May 25, 2024 | 0.06% (0.00059) | 24.81th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00059) | 22.80th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00950) | 32.28th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.95% (0.00950) | 30.63th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00950) | 28.61th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00950) | 13.46th | v2 (v2022.01.01) |
Weaknesses (1)
References (8)
- http://www.debian.org/security/2017/dsa-3847 vendor-advisoryx_refsource_DEBIAN
- http://www.securityfocus.com/bid/94963 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1037491 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- http://xenbits.xen.org/xsa/advisory-204.html x_refsource_CONFIRMPatchVendor Advisory
- https://access.redhat.com/security/cve/CVE-2016-10013 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1406259 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2016-10013
- https://www.cve.org/CVERecord?id=CVE-2016-10013
| Link | Providers | Tags |
|---|---|---|
| http://www.debian.org/security/2017/dsa-3847 | vendor-advisoryx_refsource_DEBIAN | |
| http://www.securityfocus.com/bid/94963 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1037491 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| http://xenbits.xen.org/xsa/advisory-204.html | x_refsource_CONFIRMPatchVendor Advisory | |
| https://access.redhat.com/security/cve/CVE-2016-10013 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1406259 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2016-10013 | ||
| https://www.cve.org/CVERecord?id=CVE-2016-10013 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Jan 26, 2017
Updated Aug 6, 2024
Reserved Dec 19, 2016
Link CVE-2016-10013
CISA Vulnrichment
Updated n/a