CVE-2012-4537

Name: CVE-2012-4537
Creator: NVD / NIST
Published: 2012-11-21T23:55:02.21+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.43%

Last modified Jun 16, 2026

CVE-2012-4537 is a vulnerability of currently unknown severity. Xen 3.4 through 4.2, and possibly earlier versions, does not properly synchronize the p2m and m2p tables when the set_p2m_entry function fails, which allows local HVM guest OS administrators to cause a denial of service (memory consumption and assertion failure), aka "Memory mapping failure DoS vulnerability.". EPSS estimates a 0.43% chance of exploitation in the next 30 days.

Description

Xen 3.4 through 4.2, and possibly earlier versions, does not properly synchronize the p2m and m2p tables when the set_p2m_entry function fails, which allows local HVM guest OS administrators to cause a denial of service (memory consumption and assertion failure), aka "Memory mapping failure DoS vulnerability."

Metrics

EPSS Probability

0.43%

34.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-16

Affected Software

Vendor	Product	Versions
Xen	Xen	3.4.0
Xen	Xen	3.4.1
Xen	Xen	3.4.2
Xen	Xen	3.4.3
Xen	Xen	3.4.4
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: Nov 21, 2012
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2012-4537?

How severe is CVE-2012-4537?

Severity scoring for CVE-2012-4537 is pending analysis. The EPSS model estimates a 0.43% probability of exploitation in the next 30 days.

How do I fix CVE-2012-4537?

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-2012-4537?

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

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Source: NVD / NIST