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CVE-2014-8594
The do_mmu_update function in arch/x86/mm.c in Xen 4.x through 4.4.x does not properly restrict updates to only PV page tables, which…
- 5.4MediumCVSS base score
- 2.2%Exploitation in 30 daysEPSS · top 17% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The do_mmu_update function in arch/x86/mm.c in Xen 4.x through 4.4.x does not properly restrict updates to only PV page tables, which allows remote PV guests to cause a denial of service (NULL pointer dereference) by leveraging hardware emulation services for HVM guests using Hardware Assisted Paging (HAP).
Timeline
ID reserved
By mitre
- 15 days later
· 15 days later
Published
- 10 years later
· 10 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 | Medium5.4 | AV:N/AC:H/Au:N/C:N/I:N/A:C |
- EPSS (exploitation in 30 days)
- 2.2% · top 17% of all CVEs (10 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.4.
Affected products
n/a
- affected n/a
References
8
- GLSA-201504-04 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- 62672 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://xenbits.xen.org/xsa/advisory-109.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- 71149 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- DSA-3140 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- openSUSE-SU-2015:0226 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- openSUSE-SU-2015:0256 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- xen-cve20148594-sec-byass(98767) (opens in a new tab)vdb-entryx_refsource_XFx_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-2014-8431 (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://cveledger.app/cve/CVE-2014-8594)Record last updated .