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CVE-2012-4538
The HVMOP_pagetable_dying hypercall in Xen 4.0, 4.1, and 4.2 does not properly check the pagetable state when running on shadow…
Medium4.9EPSS 0.44%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
The HVMOP_pagetable_dying hypercall in Xen 4.0, 4.1, and 4.2 does not properly check the pagetable state when running on shadow pagetables, which allows a local HVM guest OS to cause a denial of service (hypervisor crash) via unspecified vectors.
Timeline
ID reserved
By redhat
- 3 months later
· 3 months later
Published
- 12 years later
· 12 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)
- 0.44% · top 61% of all CVEs (8 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.
Weakness
Affected products
n/a
- affected n/a
References (21)
- 55082 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 51413 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 51200 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 1027762 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- GLSA-201309-24 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- DSA-2582 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- SUSE-SU-2012:1486 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 87306 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- openSUSE-SU-2012:1572 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 51468 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- SUSE-SU-2012:1487 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- xen-hvmop-dos(80025) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- SUSE-SU-2014:0446 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 51352 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 51324 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- GLSA-201604-03 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- [oss-security] 20121113 Xen Security Advisory 23 (CVE-2012-4538) - Unhooking empty PAE entries DoS vulnerability (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 56498 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- SUSE-SU-2012:1615 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- openSUSE-SU-2012:1573 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- [Xen-announce] 20121113 Xen Security Advisory 23 (CVE-2012-4538) - Unhooking empty PAE entries DoS vulnerability (opens in a new tab)mailing-listx_refsource_MLISTx_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://cveledger.app/cve/CVE-2012-4538)Record last updated .