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CVE-2015-7835
The mod_l2_entry function in arch/x86/mm.c in Xen 3.4 through 4.6.x does not properly validate level 2 page table entries, which allows…
High7.2EPSS 0.43%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
The mod_l2_entry function in arch/x86/mm.c in Xen 3.4 through 4.6.x does not properly validate level 2 page table entries, which allows local PV guest administrators to gain privileges via a crafted superpage mapping.
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)
- 0.43% · top 63% of all CVEs (4 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.
Weakness
Affected products
n/a
- affected n/a
References (12)
- http://support.citrix.com/article/CTX202404 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 77366 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- FEDORA-2015-242be2c240 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- FEDORA-2015-a931b02be2 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- http://xenbits.xen.org/xsa/advisory-148.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- openSUSE-SU-2015:2250 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- https://github.com/QubesOS/qubes-secpack/blob/master/QSBs/qsb-022-2015.txt (opens in a new tab)x_refsource_MISCx_transferred
- DSA-3390 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 1034032 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- openSUSE-SU-2015:1965 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- FEDORA-2015-6f6b79efe2 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- GLSA-201604-03 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_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)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2015-7835)Record last updated .