CVE-2013-4553

5.2 MEDIUM 0.6% exploit odds No fix listed

What it is

The XEN_DOMCTL_getmemlist hypercall in Xen 3.4.x through 4.3.x (possibly 4.3.1) does not always obtain the page_alloc_lock and mm_rwlock in the same order, which allows local guest administrators to cause a denial of service (host deadlock).

At a glance

Exploitability: Can be exploited from the same network segment with a login. High risk of service disruption.
Exploit odds: 0.6% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2013-12-24 19:55 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-16 23:57 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.6% in the next 30 days (EPSS).
Severity: 5.2 MEDIUM (CVSS).
Fix: none linked yet, which raises it.

Details

Published: 2013-12-24 19:55 UTC
Last modified: 2026-06-16 23:57 UTC
Exploit probability: 0.6% · EPSS, next 30 days
Weakness: CWE-119 · Buffer errors
Record status: Modified

Affected

Xen 3.4.0
Xen 3.4.1
Xen 3.4.2
Xen 3.4.3
Xen 3.4.4
Xen 4.0.0
Xen 4.0.1
Xen 4.0.2

Attack profile CVSS 2.0 · 5.2

Attack vector: Adjacent network
Complexity: Medium
Authentication: Single
Confidentiality: None
Integrity: None
Availability: Complete

Raw vector

AV:A/AC:M/Au:S/C:N/I:N/A:C

Is it in your code?

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References

NVD record · CVE.org record