CVE-2012-3432

Name: CVE-2012-3432
Creator: NVD / NIST
Published: 2012-12-03T21:55:01.657+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.64%

Last modified Jun 16, 2026

CVE-2012-3432 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.64% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

0.64%

46.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-264

Affected Software

Vendor	Product	Versions
Xen	Xen	3.3.0
Xen	Xen	4.0.0
Xen	Xen	4.0.1
Xen	Xen	4.0.2
Xen	Xen	4.0.3
Xen	Xen	4.0.4
Xen	Xen	4.1.0
Xen	Xen	4.1.1
Xen	Xen	4.1.2
Xen	Xen	4.1.3
Xen	Xen	4.2.0

References

Timeline

Published: Dec 3, 2012
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2012-3432?

How severe is CVE-2012-3432?

Severity scoring for CVE-2012-3432 is pending analysis. The EPSS model estimates a 0.64% probability of exploitation in the next 30 days.

How do I fix CVE-2012-3432?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2012-3432?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST