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CVE-2015-2151
The x86 emulator in Xen 3.2.x through 4.5.x does not properly ignore segment overrides for instructions with register operands, which…
- 7.2HighCVSS base score
- 0.55%Exploitation in 30 daysEPSS · top 54% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The x86 emulator in Xen 3.2.x through 4.5.x does not properly ignore segment overrides for instructions with register operands, which allows local guest users to obtain sensitive information, cause a denial of service (memory corruption), or possibly execute arbitrary code via unspecified vectors.
Timeline
ID reserved
By mitre
- 12 days later
· 12 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 | High7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 0.55% · top 54% of all CVEs (11 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.2.
Affected products
n/a
- affected n/a
References
References14
- http://www1.huawei.com/en/security/psirt/security-bulletins/security-advisories/hw-423503.htm (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://support.citrix.com/article/CTX200484 (opens in a new tab)x_refsource_CONFIRMx_transferred
- FEDORA-2015-3944 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- FEDORA-2015-3721 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://xenbits.xen.org/xsa/advisory-123.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1031903 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- DSA-3181 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761 (opens in a new tab)x_refsource_CONFIRMx_transferred
- FEDORA-2015-3935 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- openSUSE-SU-2015:0732 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- GLSA-201604-03 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- 73015 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 1031806 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_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-2015-2261 (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-2015-2151)Record last updated .