CVE-2011-1780

6.1 MEDIUM 0.7% exploit odds No fix listed

What it is

The instruction emulation in Xen 3.0.3 allows local SMP guest users to cause a denial of service (host crash) by replacing the instruction that causes the VM to exit in one thread with a different instruction in a different thread.

At a glance

Exploitability: Can be exploited from the same network segment without logging in. High risk of service disruption.
Exploit odds: 0.7% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2014-01-07 19:55 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-16 23:30 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.7% in the next 30 days (EPSS).
Severity: 6.1 MEDIUM (CVSS).
Fix: none linked yet, which raises it.

Details

Published: 2014-01-07 19:55 UTC
Last modified: 2026-06-16 23:30 UTC
Exploit probability: 0.7% · EPSS, next 30 days
Weakness: CWE-20 · Improper input validation
Record status: Modified

Affected

Xen 3.0.3

Attack profile CVSS 2.0 · 6.1

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

Raw vector

AV:A/AC:L/Au:N/C:N/I:N/A:C

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2011-1780.md and follow it. Check whether this project is affected by CVE-2011-1780. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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References

NVD record · CVE.org record