CVE-2012-3432
The handle_mmio function in arch/x86/hvm/io.c in the MMIO operations emulator for Xen 3.3 and 4.x, when running an HVM guest, does not…
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
The handle_mmio function in arch/x86/hvm/io.c in the MMIO operations emulator for Xen 3.3 and 4.x, when running an HVM guest, does not properly reset certain state information between emulation cycles, which allows local guest OS users to cause a denial of service (guest OS crash) via unspecified operations on MMIO regions.
Timeline
ID reserved
By redhat
- 6 months later
· 6 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 | Low1.9 | AV:L/AC:M/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 0.64% · top 49% of all CVEs (8 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 1.9.
Weakness
Affected products
n/a
- affected n/a
References (9)
- DSA-2531 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 55082 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- [Xen-devel] 20120727 Xen Security Advisory 10 (CVE-2012-3432) - HVM user mode MMIO emul DoS (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- GLSA-201309-24 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- SUSE-SU-2012:1044 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- SUSE-SU-2012:1043 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- openSUSE-SU-2012:1174 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 54691 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- openSUSE-SU-2012:1172 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_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)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2012-3432)Record last updated .