How severe is CVE-2011-1780?

CVE-2011-1780 has a CVSS 2.0 base score of 6.1, rated medium severity.

Is CVE-2011-1780 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-1780?

CVE-2011-1780 affects Xen. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2011-1780?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2011-1780 published?

CVE-2011-1780 was published on 2014-01-07 and last updated on 2026-06-16.

CVE-2011-1780

CVE-2011-1780 is a medium-severity vulnerability in Xen with a CVSS 2.0 base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 2.0 base score 6.1)
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Xen
Published: 2014-01-07
Last modified: 2026-06-16

Description

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.

Frequently asked questions

What is CVE-2011-1780?: 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.
How severe is CVE-2011-1780?: CVE-2011-1780 has a CVSS 2.0 base score of 6.1, rated medium severity.
Is CVE-2011-1780 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-1780?: CVE-2011-1780 affects Xen. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-1780?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-1780 published?: CVE-2011-1780 was published on 2014-01-07 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:o:xen:xen:3.0.3:*:*:*:*:*:*:*

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