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CVE-2015-4103
Xen 3.3.x through 4.5.x does not properly restrict write access to the host MSI message data field, which allows local x86 HVM guest…
- 4.9MediumCVSS base score
- 0.45%Exploitation in 30 daysEPSS · top 61% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Xen 3.3.x through 4.5.x does not properly restrict write access to the host MSI message data field, which allows local x86 HVM guest administrators to cause a denial of service (host interrupt handling confusion) via vectors related to qemu and accessing spanning multiple fields.
Timeline
ID reserved
By mitre
- 7 days later
· 7 days later
Published
- 9 years later
· 9 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium4.9 | AV:L/AC:L/Au:N/C:N/I:N/A:C |
- EPSS (exploitation in 30 days)
- 0.45% · top 61% of all CVEs (9 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.9.
Affected products
n/a
- affected n/a
References
16
- USN-2630-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://support.citrix.com/article/CTX206006 (opens in a new tab)x_refsource_CONFIRMx_transferred
- DSA-3286 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- SUSE-SU-2015:1156 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- FEDORA-2015-9466 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- DSA-3284 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 1032456 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- SUSE-SU-2015:1157 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- http://support.citrix.com/article/CTX201145 (opens in a new tab)x_refsource_CONFIRMx_transferred
- SUSE-SU-2015:1045 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 74947 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- http://xenbits.xen.org/xsa/advisory-128.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- GLSA-201604-03 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- FEDORA-2015-9456 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- SUSE-SU-2015:1042 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- FEDORA-2015-9965 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2015-4128 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2015-4103)Record last updated .