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CVE-2016-3961
Xen and the Linux kernel through 4.5.x do not properly suppress hugetlbfs support in x86 PV guests, which allows local PV guest OS users…
- 5.5MediumCVSS base score
- 0.51%Exploitation in 30 daysEPSS · top 56% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Xen and the Linux kernel through 4.5.x do not properly suppress hugetlbfs support in x86 PV guests, which allows local PV guest OS users to cause a denial of service (guest OS crash) by attempting to access a hugetlbfs mapped area.
Timeline
ID reserved
By mitre
- 10 days later
· 10 days later
Published
- 8 years later
· 8 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 | 3.0 | Medium5.5 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.51% · top 56% 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 5.5.
Affected products
n/a
- affected n/a
References
14
- http://xenbits.xen.org/xsa/xsa174.patch (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-3006-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-3004-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-3001-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- http://xenbits.xen.org/xsa/advisory-174.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-3005-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- 1035569 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- USN-3049-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- DSA-3607 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- USN-3002-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-3050-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-3007-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-3003-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- 86068 (opens in a new tab)vdb-entryx_refsource_BIDx_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-2016-4970 (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-2016-3961)Record last updated .