Vulnerability in Xen

CVE-2016-2271

VMX in Xen 4.6.x and earlier, when using an Intel or Cyrix CPU, allows local HVM guest users to cause a denial of service (guest crash) via vectors related to a non-canonical RIP.

EPSS: 0.004 (31.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

  • Xen — versions 4.6.0, 4.6.1
  • N/a — versions n/a

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2016-2271?
CVE-2016-2271 is a medium-severity vulnerability in Xen. CVSS score: 5.5/10. Published 2016-02-19.
How severe is CVE-2016-2271?
Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2016-2271 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.