xen: qemu-dm buffer overrun in MSI-X handling (XSA-164)
Published Apr 14, 2016
7.5
HIGHCVSS 3.0
EPSS 0.40%
Description
Buffer overflow in hw/pt-msi.c in Xen 4.6.x and earlier, when using the qemu-xen-traditional (aka qemu-dm) device model, allows local x86 HVM guest administrators to gain privileges by leveraging a system with access to a passed-through MSI-X capable physical PCI device and MSI-X table entries, related to a "write path."
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
AV:L/AC:M/Au:S/C:C/I:C/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
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% (0.00400) | 31.75th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.40% (0.00400) | 31.52th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.04% (0.00042) | 9.79th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.07% (0.00069) | 32.26th | v3 (v2023.03.01) |
| Jun 13, 2024 | 0.07% (0.00069) | 30.15th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.07% (0.00069) | 28.11th | 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) |
References (10)
- http://support.citrix.com/article/CTX203879 x_refsource_CONFIRMVendor Advisory
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html x_refsource_CONFIRM
- http://www.securityfocus.com/bid/79579 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1034481 vdb-entryx_refsource_SECTRACK
- http://xenbits.xen.org/xsa/advisory-164.html x_refsource_CONFIRMVendor Advisory
- https://access.redhat.com/security/cve/CVE-2015-8554 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1289129 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2015-8554
- https://security.gentoo.org/glsa/201604-03 vendor-advisoryx_refsource_GENTOO
- https://www.cve.org/CVERecord?id=CVE-2015-8554
| Link | Providers | Tags |
|---|---|---|
| http://support.citrix.com/article/CTX203879 | x_refsource_CONFIRMVendor Advisory | |
| http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html | x_refsource_CONFIRM | |
| http://www.securityfocus.com/bid/79579 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id/1034481 | vdb-entryx_refsource_SECTRACK | |
| http://xenbits.xen.org/xsa/advisory-164.html | x_refsource_CONFIRMVendor Advisory | |
| https://access.redhat.com/security/cve/CVE-2015-8554 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1289129 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2015-8554 | ||
| https://security.gentoo.org/glsa/201604-03 | vendor-advisoryx_refsource_GENTOO | |
| https://www.cve.org/CVERecord?id=CVE-2015-8554 |
Change history (0)
No recorded changes yet.